diff options
Diffstat (limited to 'mesalib/src')
| -rw-r--r-- | mesalib/src/gallium/auxiliary/util/u_network.c | 379 | ||||
| -rw-r--r-- | mesalib/src/gallium/auxiliary/util/u_network.h | 49 | ||||
| -rw-r--r-- | mesalib/src/glsl/ast_to_hir.cpp | 10 | ||||
| -rw-r--r-- | mesalib/src/glsl/ir.cpp | 24 | ||||
| -rw-r--r-- | mesalib/src/glsl/ir.h | 25 | ||||
| -rw-r--r-- | mesalib/src/glsl/ir_reader.cpp | 6 | ||||
| -rw-r--r-- | mesalib/src/glsl/ir_set_program_inouts.cpp | 47 | ||||
| -rw-r--r-- | mesalib/src/mesa/main/api_exec.c | 1 | ||||
| -rw-r--r-- | mesalib/src/mesa/main/dlist.c | 19 | ||||
| -rw-r--r-- | mesalib/src/mesa/main/mtypes.h | 23 | ||||
| -rw-r--r-- | mesalib/src/mesa/main/transformfeedback.c | 1878 | ||||
| -rw-r--r-- | mesalib/src/mesa/program/ir_to_mesa.cpp | 2 | ||||
| -rw-r--r-- | mesalib/src/mesa/state_tracker/st_glsl_to_tgsi.cpp | 2 |
13 files changed, 1276 insertions, 1189 deletions
diff --git a/mesalib/src/gallium/auxiliary/util/u_network.c b/mesalib/src/gallium/auxiliary/util/u_network.c index d135b590f..45b3691f9 100644 --- a/mesalib/src/gallium/auxiliary/util/u_network.c +++ b/mesalib/src/gallium/auxiliary/util/u_network.c @@ -1,188 +1,191 @@ -
-#include "pipe/p_compiler.h"
-#include "util/u_network.h"
-#include "util/u_debug.h"
-
-#if defined(PIPE_SUBSYSTEM_WINDOWS_USER)
-# include <winsock2.h>
-# include <windows.h>
-#elif defined(PIPE_OS_LINUX) || defined(PIPE_OS_HAIKU) || defined(PIPE_OS_APPLE) || defined(PIPE_OS_CYGWIN)
-# include <sys/socket.h>
-# include <netinet/in.h>
-# include <unistd.h>
-# include <fcntl.h>
-# include <netdb.h>
-#else
-# warning "No socket implementation"
-#endif
-
-boolean
-u_socket_init()
-{
-#if defined(PIPE_SUBSYSTEM_WINDOWS_USER)
- WORD wVersionRequested;
- WSADATA wsaData;
- int err;
-
- /* Use the MAKEWORD(lowbyte, highbyte) macro declared in Windef.h */
- wVersionRequested = MAKEWORD(1, 1);
-
- err = WSAStartup(wVersionRequested, &wsaData);
- if (err != 0) {
- debug_printf("WSAStartup failed with error: %d\n", err);
- return FALSE;
- }
- return TRUE;
-#elif defined(PIPE_HAVE_SOCKETS)
- return TRUE;
-#else
- return FALSE;
-#endif
-}
-
-void
-u_socket_stop()
-{
-#if defined(PIPE_SUBSYSTEM_WINDOWS_USER)
- WSACleanup();
-#endif
-}
-
-void
-u_socket_close(int s)
-{
- if (s < 0)
- return;
-
-#if defined(PIPE_OS_LINUX) || defined(PIPE_OS_HAIKU) || defined(PIPE_OS_APPLE)
- shutdown(s, SHUT_RDWR);
- close(s);
-#elif defined(PIPE_SUBSYSTEM_WINDOWS_USER)
- shutdown(s, SD_BOTH);
- closesocket(s);
-#else
- assert(0);
-#endif
-}
-
-int u_socket_accept(int s)
-{
-#if defined(PIPE_HAVE_SOCKETS)
- return accept(s, NULL, NULL);
-#else
- return -1;
-#endif
-}
-
-int
-u_socket_send(int s, void *data, size_t size)
-{
-#if defined(PIPE_HAVE_SOCKETS)
- return send(s, data, size, 0);
-#else
- return -1;
-#endif
-}
-
-int
-u_socket_peek(int s, void *data, size_t size)
-{
-#if defined(PIPE_HAVE_SOCKETS)
- return recv(s, data, size, MSG_PEEK);
-#else
- return -1;
-#endif
-}
-
-int
-u_socket_recv(int s, void *data, size_t size)
-{
-#if defined(PIPE_HAVE_SOCKETS)
- return recv(s, data, size, 0);
-#else
- return -1;
-#endif
-}
-
-int
-u_socket_connect(const char *hostname, uint16_t port)
-{
-#if defined(PIPE_HAVE_SOCKETS)
- int s;
- struct sockaddr_in sa;
- struct hostent *host = NULL;
-
- memset(&sa, 0, sizeof(struct sockaddr_in));
- host = gethostbyname(hostname);
- if (!host)
- return -1;
-
- memcpy((char *)&sa.sin_addr,host->h_addr_list[0],host->h_length);
- sa.sin_family= host->h_addrtype;
- sa.sin_port = htons(port);
-
- s = socket(host->h_addrtype, SOCK_STREAM, IPPROTO_TCP);
- if (s < 0)
- return -1;
-
- if (connect(s, (struct sockaddr *)&sa, sizeof(sa))) {
- u_socket_close(s);
- return -1;
- }
-
- return s;
-#else
- assert(0);
- return -1;
-#endif
-}
-
-int
-u_socket_listen_on_port(uint16_t portnum)
-{
-#if defined(PIPE_HAVE_SOCKETS)
- int s;
- struct sockaddr_in sa;
- memset(&sa, 0, sizeof(struct sockaddr_in));
-
- sa.sin_family = AF_INET;
- sa.sin_port = htons(portnum);
-
- s = socket(AF_INET, SOCK_STREAM, IPPROTO_TCP);
- if (s < 0)
- return -1;
-
- if (bind(s, (struct sockaddr *)&sa, sizeof(struct sockaddr_in)) == -1) {
- u_socket_close(s);
- return -1;
- }
-
- listen(s, 0);
-
- return s;
-#else
- assert(0);
- return -1;
-#endif
-}
-
-void
-u_socket_block(int s, boolean block)
-{
-#if defined(PIPE_OS_LINUX) || defined(PIPE_OS_HAIKU) || defined(PIPE_OS_APPLE)
- int old = fcntl(s, F_GETFL, 0);
- if (old == -1)
- return;
-
- /* TODO obey block */
- if (block)
- fcntl(s, F_SETFL, old & ~O_NONBLOCK);
- else
- fcntl(s, F_SETFL, old | O_NONBLOCK);
-#elif defined(PIPE_SUBSYSTEM_WINDOWS_USER)
- u_long iMode = block ? 0 : 1;
- ioctlsocket(s, FIONBIO, &iMode);
-#else
- assert(0);
-#endif
-}
+ +#include "pipe/p_compiler.h" +#include "util/u_network.h" +#include "util/u_debug.h" + +#if defined(PIPE_SUBSYSTEM_WINDOWS_USER) +# include <winsock2.h> +# include <windows.h> +#elif defined(PIPE_OS_LINUX) || defined(PIPE_OS_HAIKU) || \ + defined(PIPE_OS_APPLE) || defined(PIPE_OS_CYGWIN) || defined(PIPE_OS_SOLARIS) +# include <sys/socket.h> +# include <netinet/in.h> +# include <unistd.h> +# include <fcntl.h> +# include <netdb.h> +#else +# warning "No socket implementation" +#endif + +boolean +u_socket_init() +{ +#if defined(PIPE_SUBSYSTEM_WINDOWS_USER) + WORD wVersionRequested; + WSADATA wsaData; + int err; + + /* Use the MAKEWORD(lowbyte, highbyte) macro declared in Windef.h */ + wVersionRequested = MAKEWORD(1, 1); + + err = WSAStartup(wVersionRequested, &wsaData); + if (err != 0) { + debug_printf("WSAStartup failed with error: %d\n", err); + return FALSE; + } + return TRUE; +#elif defined(PIPE_HAVE_SOCKETS) + return TRUE; +#else + return FALSE; +#endif +} + +void +u_socket_stop() +{ +#if defined(PIPE_SUBSYSTEM_WINDOWS_USER) + WSACleanup(); +#endif +} + +void +u_socket_close(int s) +{ + if (s < 0) + return; + +#if defined(PIPE_OS_LINUX) || defined(PIPE_OS_HAIKU) \ + || defined(PIPE_OS_APPLE) || defined(PIPE_OS_SOLARIS) + shutdown(s, SHUT_RDWR); + close(s); +#elif defined(PIPE_SUBSYSTEM_WINDOWS_USER) + shutdown(s, SD_BOTH); + closesocket(s); +#else + assert(0); +#endif +} + +int u_socket_accept(int s) +{ +#if defined(PIPE_HAVE_SOCKETS) + return accept(s, NULL, NULL); +#else + return -1; +#endif +} + +int +u_socket_send(int s, void *data, size_t size) +{ +#if defined(PIPE_HAVE_SOCKETS) + return send(s, data, size, 0); +#else + return -1; +#endif +} + +int +u_socket_peek(int s, void *data, size_t size) +{ +#if defined(PIPE_HAVE_SOCKETS) + return recv(s, data, size, MSG_PEEK); +#else + return -1; +#endif +} + +int +u_socket_recv(int s, void *data, size_t size) +{ +#if defined(PIPE_HAVE_SOCKETS) + return recv(s, data, size, 0); +#else + return -1; +#endif +} + +int +u_socket_connect(const char *hostname, uint16_t port) +{ +#if defined(PIPE_HAVE_SOCKETS) + int s; + struct sockaddr_in sa; + struct hostent *host = NULL; + + memset(&sa, 0, sizeof(struct sockaddr_in)); + host = gethostbyname(hostname); + if (!host) + return -1; + + memcpy((char *)&sa.sin_addr,host->h_addr_list[0],host->h_length); + sa.sin_family= host->h_addrtype; + sa.sin_port = htons(port); + + s = socket(host->h_addrtype, SOCK_STREAM, IPPROTO_TCP); + if (s < 0) + return -1; + + if (connect(s, (struct sockaddr *)&sa, sizeof(sa))) { + u_socket_close(s); + return -1; + } + + return s; +#else + assert(0); + return -1; +#endif +} + +int +u_socket_listen_on_port(uint16_t portnum) +{ +#if defined(PIPE_HAVE_SOCKETS) + int s; + struct sockaddr_in sa; + memset(&sa, 0, sizeof(struct sockaddr_in)); + + sa.sin_family = AF_INET; + sa.sin_port = htons(portnum); + + s = socket(AF_INET, SOCK_STREAM, IPPROTO_TCP); + if (s < 0) + return -1; + + if (bind(s, (struct sockaddr *)&sa, sizeof(struct sockaddr_in)) == -1) { + u_socket_close(s); + return -1; + } + + listen(s, 0); + + return s; +#else + assert(0); + return -1; +#endif +} + +void +u_socket_block(int s, boolean block) +{ +#if defined(PIPE_OS_LINUX) || defined(PIPE_OS_HAIKU) \ + || defined(PIPE_OS_APPLE) || defined(PIPE_OS_SOLARIS) + int old = fcntl(s, F_GETFL, 0); + if (old == -1) + return; + + /* TODO obey block */ + if (block) + fcntl(s, F_SETFL, old & ~O_NONBLOCK); + else + fcntl(s, F_SETFL, old | O_NONBLOCK); +#elif defined(PIPE_SUBSYSTEM_WINDOWS_USER) + u_long iMode = block ? 0 : 1; + ioctlsocket(s, FIONBIO, &iMode); +#else + assert(0); +#endif +} diff --git a/mesalib/src/gallium/auxiliary/util/u_network.h b/mesalib/src/gallium/auxiliary/util/u_network.h index 5bf18c542..61fe9a3c6 100644 --- a/mesalib/src/gallium/auxiliary/util/u_network.h +++ b/mesalib/src/gallium/auxiliary/util/u_network.h @@ -1,24 +1,25 @@ -
-#ifndef _U_NETWORK_H_
-#define _U_NETWORK_H_
-
-#include "pipe/p_compiler.h"
-
-#if defined(PIPE_SUBSYSTEM_WINDOWS_USER)
-# define PIPE_HAVE_SOCKETS
-#elif defined(PIPE_OS_LINUX) || defined(PIPE_OS_HAIKU) || defined(PIPE_OS_APPLE)
-# define PIPE_HAVE_SOCKETS
-#endif
-
-boolean u_socket_init(void);
-void u_socket_stop(void);
-void u_socket_close(int s);
-int u_socket_listen_on_port(uint16_t portnum);
-int u_socket_accept(int s);
-int u_socket_connect(const char *host, uint16_t port);
-int u_socket_send(int s, void *data, size_t size);
-int u_socket_peek(int s, void *data, size_t size);
-int u_socket_recv(int s, void *data, size_t size);
-void u_socket_block(int s, boolean block);
-
-#endif
+ +#ifndef _U_NETWORK_H_ +#define _U_NETWORK_H_ + +#include "pipe/p_compiler.h" + +#if defined(PIPE_SUBSYSTEM_WINDOWS_USER) +# define PIPE_HAVE_SOCKETS +#elif defined(PIPE_OS_LINUX) || defined(PIPE_OS_HAIKU) || \ + defined(PIPE_OS_APPLE) || defined(PIPE_OS_SOLARIS) +# define PIPE_HAVE_SOCKETS +#endif + +boolean u_socket_init(void); +void u_socket_stop(void); +void u_socket_close(int s); +int u_socket_listen_on_port(uint16_t portnum); +int u_socket_accept(int s); +int u_socket_connect(const char *host, uint16_t port); +int u_socket_send(int s, void *data, size_t size); +int u_socket_peek(int s, void *data, size_t size); +int u_socket_recv(int s, void *data, size_t size); +void u_socket_block(int s, boolean block); + +#endif diff --git a/mesalib/src/glsl/ast_to_hir.cpp b/mesalib/src/glsl/ast_to_hir.cpp index 70afb67df..fa6206e5e 100644 --- a/mesalib/src/glsl/ast_to_hir.cpp +++ b/mesalib/src/glsl/ast_to_hir.cpp @@ -1962,11 +1962,13 @@ apply_type_qualifier_to_variable(const struct ast_type_qualifier *qual, } if (qual->flags.q.flat) - var->interpolation = ir_var_flat; + var->interpolation = INTERP_QUALIFIER_FLAT; else if (qual->flags.q.noperspective) - var->interpolation = ir_var_noperspective; + var->interpolation = INTERP_QUALIFIER_NOPERSPECTIVE; + else if (qual->flags.q.smooth) + var->interpolation = INTERP_QUALIFIER_SMOOTH; else - var->interpolation = ir_var_smooth; + var->interpolation = INTERP_QUALIFIER_NONE; var->pixel_center_integer = qual->flags.q.pixel_center_integer; var->origin_upper_left = qual->flags.q.origin_upper_left; @@ -2630,7 +2632,7 @@ ast_declarator_list::hir(exec_list *instructions, && state->current_function == NULL && var->type->is_integer() && var->mode == ir_var_out - && var->interpolation != ir_var_flat) { + && var->interpolation != INTERP_QUALIFIER_FLAT) { _mesa_glsl_error(&loc, state, "If a vertex output is an integer, " "then it must be qualified with 'flat'"); diff --git a/mesalib/src/glsl/ir.cpp b/mesalib/src/glsl/ir.cpp index d968890a2..ef7300e65 100644 --- a/mesalib/src/glsl/ir.cpp +++ b/mesalib/src/glsl/ir.cpp @@ -1320,7 +1320,7 @@ ir_swizzle::variable_referenced() const ir_variable::ir_variable(const struct glsl_type *type, const char *name, ir_variable_mode mode) : max_array_access(0), read_only(false), centroid(false), invariant(false), - mode(mode), interpolation(ir_var_smooth) + mode(mode), interpolation(INTERP_QUALIFIER_NONE) { this->ir_type = ir_type_variable; this->type = type; @@ -1343,9 +1343,10 @@ const char * ir_variable::interpolation_string() const { switch (this->interpolation) { - case ir_var_smooth: return "smooth"; - case ir_var_flat: return "flat"; - case ir_var_noperspective: return "noperspective"; + case INTERP_QUALIFIER_NONE: return "no"; + case INTERP_QUALIFIER_SMOOTH: return "smooth"; + case INTERP_QUALIFIER_FLAT: return "flat"; + case INTERP_QUALIFIER_NOPERSPECTIVE: return "noperspective"; } assert(!"Should not get here."); @@ -1353,6 +1354,21 @@ ir_variable::interpolation_string() const } +glsl_interp_qualifier +ir_variable::determine_interpolation_mode(bool flat_shade) +{ + if (this->interpolation != INTERP_QUALIFIER_NONE) + return (glsl_interp_qualifier) this->interpolation; + int location = this->location; + bool is_gl_Color = + location == FRAG_ATTRIB_COL0 || location == FRAG_ATTRIB_COL1; + if (flat_shade && is_gl_Color) + return INTERP_QUALIFIER_FLAT; + else + return INTERP_QUALIFIER_SMOOTH; +} + + ir_function_signature::ir_function_signature(const glsl_type *return_type) : return_type(return_type), is_defined(false), _function(NULL) { diff --git a/mesalib/src/glsl/ir.h b/mesalib/src/glsl/ir.h index b707634ea..404d4cffa 100644 --- a/mesalib/src/glsl/ir.h +++ b/mesalib/src/glsl/ir.h @@ -34,6 +34,7 @@ #include "list.h" #include "ir_visitor.h" #include "ir_hierarchical_visitor.h" +#include "main/mtypes.h" /** * \defgroup IR Intermediate representation nodes @@ -227,12 +228,6 @@ enum ir_variable_mode { ir_var_temporary /**< Temporary variable generated during compilation. */ }; -enum ir_variable_interpolation { - ir_var_smooth = 0, - ir_var_flat, - ir_var_noperspective -}; - /** * \brief Layout qualifiers for gl_FragDepth. * @@ -288,11 +283,26 @@ public: * \return The string that would be used in a shader to specify \c * mode will be returned. * + * This function is used to generate error messages of the form "shader + * uses %s interpolation qualifier", so in the case where there is no + * interpolation qualifier, it returns "no". + * * This function should only be used on a shader input or output variable. */ const char *interpolation_string() const; /** + * Determine how this variable should be interpolated based on its + * interpolation qualifier (if present), whether it is gl_Color or + * gl_SecondaryColor, and whether flatshading is enabled in the current GL + * state. + * + * The return value will always be either INTERP_QUALIFIER_SMOOTH, + * INTERP_QUALIFIER_NOPERSPECTIVE, or INTERP_QUALIFIER_FLAT. + */ + glsl_interp_qualifier determine_interpolation_mode(bool flat_shade); + + /** * Delcared name of the variable */ const char *name; @@ -1679,7 +1689,8 @@ extern bool ir_has_call(ir_instruction *ir); extern void -do_set_program_inouts(exec_list *instructions, struct gl_program *prog); +do_set_program_inouts(exec_list *instructions, struct gl_program *prog, + bool is_fragment_shader); extern char * prototype_string(const glsl_type *return_type, const char *name, diff --git a/mesalib/src/glsl/ir_reader.cpp b/mesalib/src/glsl/ir_reader.cpp index afb06b3be..e3a3ed97d 100644 --- a/mesalib/src/glsl/ir_reader.cpp +++ b/mesalib/src/glsl/ir_reader.cpp @@ -405,11 +405,11 @@ ir_reader::read_declaration(s_expression *expr) } else if (strcmp(qualifier->value(), "inout") == 0) { var->mode = ir_var_inout; } else if (strcmp(qualifier->value(), "smooth") == 0) { - var->interpolation = ir_var_smooth; + var->interpolation = INTERP_QUALIFIER_SMOOTH; } else if (strcmp(qualifier->value(), "flat") == 0) { - var->interpolation = ir_var_flat; + var->interpolation = INTERP_QUALIFIER_FLAT; } else if (strcmp(qualifier->value(), "noperspective") == 0) { - var->interpolation = ir_var_noperspective; + var->interpolation = INTERP_QUALIFIER_NOPERSPECTIVE; } else { ir_read_error(expr, "unknown qualifier: %s", qualifier->value()); return NULL; diff --git a/mesalib/src/glsl/ir_set_program_inouts.cpp b/mesalib/src/glsl/ir_set_program_inouts.cpp index ae3ef74c7..8c2bc30d6 100644 --- a/mesalib/src/glsl/ir_set_program_inouts.cpp +++ b/mesalib/src/glsl/ir_set_program_inouts.cpp @@ -26,6 +26,8 @@ * * Sets the InputsRead and OutputsWritten of Mesa programs. * + * Additionally, for fragment shaders, sets the InterpQualifier array. + * * Mesa programs (gl_program, not gl_shader_program) have a set of * flags indicating which varyings are read and written. Computing * which are actually read from some sort of backend code can be @@ -42,9 +44,11 @@ class ir_set_program_inouts_visitor : public ir_hierarchical_visitor { public: - ir_set_program_inouts_visitor(struct gl_program *prog) + ir_set_program_inouts_visitor(struct gl_program *prog, + bool is_fragment_shader) { this->prog = prog; + this->is_fragment_shader = is_fragment_shader; this->ht = hash_table_ctor(0, hash_table_pointer_hash, hash_table_pointer_compare); @@ -61,10 +65,12 @@ public: struct gl_program *prog; struct hash_table *ht; + bool is_fragment_shader; }; static void -mark(struct gl_program *prog, ir_variable *var, int offset, int len) +mark(struct gl_program *prog, ir_variable *var, int offset, int len, + bool is_fragment_shader) { /* As of GLSL 1.20, varyings can only be floats, floating-point * vectors or matrices, or arrays of them. For Mesa programs using @@ -75,12 +81,19 @@ mark(struct gl_program *prog, ir_variable *var, int offset, int len) */ for (int i = 0; i < len; i++) { - if (var->mode == ir_var_in) - prog->InputsRead |= BITFIELD64_BIT(var->location + offset + i); - else if (var->mode == ir_var_system_value) - prog->SystemValuesRead |= (1 << (var->location + offset + i)); - else - prog->OutputsWritten |= BITFIELD64_BIT(var->location + offset + i); + GLbitfield64 bitfield = BITFIELD64_BIT(var->location + offset + i); + if (var->mode == ir_var_in) { + prog->InputsRead |= bitfield; + if (is_fragment_shader) { + gl_fragment_program *fprog = (gl_fragment_program *) prog; + fprog->InterpQualifier[var->location + offset + i] = + (glsl_interp_qualifier) var->interpolation; + } + } else if (var->mode == ir_var_system_value) { + prog->SystemValuesRead |= bitfield; + } else { + prog->OutputsWritten |= bitfield; + } } } @@ -93,9 +106,11 @@ ir_set_program_inouts_visitor::visit(ir_dereference_variable *ir) if (ir->type->is_array()) { mark(this->prog, ir->var, 0, - ir->type->length * ir->type->fields.array->matrix_columns); + ir->type->length * ir->type->fields.array->matrix_columns, + this->is_fragment_shader); } else { - mark(this->prog, ir->var, 0, ir->type->matrix_columns); + mark(this->prog, ir->var, 0, ir->type->matrix_columns, + this->is_fragment_shader); } return visit_continue; @@ -121,7 +136,8 @@ ir_set_program_inouts_visitor::visit_enter(ir_dereference_array *ir) width = deref_var->type->fields.array->matrix_columns; } - mark(this->prog, var, index->value.i[0] * width, width); + mark(this->prog, var, index->value.i[0] * width, width, + this->is_fragment_shader); return visit_continue_with_parent; } @@ -151,12 +167,17 @@ ir_set_program_inouts_visitor::visit_enter(ir_function_signature *ir) } void -do_set_program_inouts(exec_list *instructions, struct gl_program *prog) +do_set_program_inouts(exec_list *instructions, struct gl_program *prog, + bool is_fragment_shader) { - ir_set_program_inouts_visitor v(prog); + ir_set_program_inouts_visitor v(prog, is_fragment_shader); prog->InputsRead = 0; prog->OutputsWritten = 0; prog->SystemValuesRead = 0; + if (is_fragment_shader) { + memset(((gl_fragment_program *) prog)->InterpQualifier, 0, + sizeof(((gl_fragment_program *) prog)->InterpQualifier)); + } visit_list_elements(&v, instructions); } diff --git a/mesalib/src/mesa/main/api_exec.c b/mesalib/src/mesa/main/api_exec.c index 93214dd0b..1bc39db55 100644 --- a/mesalib/src/mesa/main/api_exec.c +++ b/mesalib/src/mesa/main/api_exec.c @@ -469,6 +469,7 @@ _mesa_create_exec_table(void) SET_DepthBoundsEXT(exec, _mesa_DepthBoundsEXT); /* 352. GL_EXT_transform_feedback */ + /* ARB 93. GL_ARB_transform_feedback2 */ _mesa_init_transform_feedback_dispatch(exec); /* 364. GL_EXT_provoking_vertex */ diff --git a/mesalib/src/mesa/main/dlist.c b/mesalib/src/mesa/main/dlist.c index d901bddf8..52548fdc1 100644 --- a/mesalib/src/mesa/main/dlist.c +++ b/mesalib/src/mesa/main/dlist.c @@ -69,6 +69,9 @@ #if FEATURE_NV_vertex_program || FEATURE_NV_fragment_program #include "nvprogram.h" #endif +#if FEATURE_EXT_transform_feedback +#include "transformfeedback.h" +#endif #include "math/m_matrix.h" @@ -6272,15 +6275,6 @@ save_EndTransformFeedback(void) } static void GLAPIENTRY -save_TransformFeedbackVaryings(GLuint program, GLsizei count, - const GLchar **varyings, GLenum bufferMode) -{ - GET_CURRENT_CONTEXT(ctx); - _mesa_problem(ctx, - "glTransformFeedbackVarying() display list support not done"); -} - -static void GLAPIENTRY save_BindTransformFeedback(GLenum target, GLuint name) { GET_CURRENT_CONTEXT(ctx); @@ -10321,9 +10315,14 @@ _mesa_create_save_table(void) #endif #if FEATURE_EXT_transform_feedback + /* These are not compiled into display lists: */ + SET_BindBufferBaseEXT(table, _mesa_BindBufferBase); + SET_BindBufferOffsetEXT(table, _mesa_BindBufferOffsetEXT); + SET_BindBufferRangeEXT(table, _mesa_BindBufferRange); + SET_TransformFeedbackVaryingsEXT(table, _mesa_TransformFeedbackVaryings); + /* These are: */ SET_BeginTransformFeedbackEXT(table, save_BeginTransformFeedback); SET_EndTransformFeedbackEXT(table, save_EndTransformFeedback); - SET_TransformFeedbackVaryingsEXT(table, save_TransformFeedbackVaryings); SET_BindTransformFeedback(table, save_BindTransformFeedback); SET_PauseTransformFeedback(table, save_PauseTransformFeedback); SET_ResumeTransformFeedback(table, save_ResumeTransformFeedback); diff --git a/mesalib/src/mesa/main/mtypes.h b/mesalib/src/mesa/main/mtypes.h index 411768641..aa3fa6aec 100644 --- a/mesalib/src/mesa/main/mtypes.h +++ b/mesalib/src/mesa/main/mtypes.h @@ -1790,6 +1790,22 @@ typedef enum } gl_system_value; +/** + * The possible interpolation qualifiers that can be applied to a fragment + * shader input in GLSL. + * + * Note: INTERP_QUALIFIER_NONE must be 0 so that memsetting the + * gl_fragment_program data structure to 0 causes the default behavior. + */ +enum glsl_interp_qualifier +{ + INTERP_QUALIFIER_NONE = 0, + INTERP_QUALIFIER_SMOOTH, + INTERP_QUALIFIER_FLAT, + INTERP_QUALIFIER_NOPERSPECTIVE +}; + + /** Vertex and fragment instructions */ struct prog_instruction; struct gl_program_parameter_list; @@ -1890,6 +1906,13 @@ struct gl_fragment_program GLboolean OriginUpperLeft; GLboolean PixelCenterInteger; enum gl_frag_depth_layout FragDepthLayout; + + /** + * GLSL interpolation qualifier associated with each fragment shader input. + * For inputs that do not have an interpolation qualifier specified in + * GLSL, the value is INTERP_QUALIFIER_NONE. + */ + enum glsl_interp_qualifier InterpQualifier[FRAG_ATTRIB_MAX]; }; diff --git a/mesalib/src/mesa/main/transformfeedback.c b/mesalib/src/mesa/main/transformfeedback.c index 85c213552..b5fb98ecb 100644 --- a/mesalib/src/mesa/main/transformfeedback.c +++ b/mesalib/src/mesa/main/transformfeedback.c @@ -1,934 +1,944 @@ -/*
- * Mesa 3-D graphics library
- *
- * Copyright (C) 2010 VMware, Inc. All Rights Reserved.
- *
- * Permission is hereby granted, free of charge, to any person obtaining a
- * copy of this software and associated documentation files (the "Software"),
- * to deal in the Software without restriction, including without limitation
- * the rights to use, copy, modify, merge, publish, distribute, sublicense,
- * and/or sell copies of the Software, and to permit persons to whom the
- * Software is furnished to do so, subject to the following conditions:
- *
- * The above copyright notice and this permission notice shall be included
- * in all copies or substantial portions of the Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
- * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
- * THE AUTHORS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
- * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
- * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
- */
-
-
-/*
- * Vertex transform feedback support.
- *
- * Authors:
- * Brian Paul
- */
-
-
-#include "buffers.h"
-#include "bufferobj.h"
-#include "context.h"
-#include "hash.h"
-#include "mfeatures.h"
-#include "mtypes.h"
-#include "transformfeedback.h"
-#include "shaderapi.h"
-#include "shaderobj.h"
-#include "main/dispatch.h"
-
-#include "program/prog_parameter.h"
-
-
-#if FEATURE_EXT_transform_feedback
-
-
-/**
- * Do reference counting of transform feedback buffers.
- */
-static void
-reference_transform_feedback_object(struct gl_transform_feedback_object **ptr,
- struct gl_transform_feedback_object *obj)
-{
- if (*ptr == obj)
- return;
-
- if (*ptr) {
- /* Unreference the old object */
- struct gl_transform_feedback_object *oldObj = *ptr;
-
- ASSERT(oldObj->RefCount > 0);
- oldObj->RefCount--;
-
- if (oldObj->RefCount == 0) {
- GET_CURRENT_CONTEXT(ctx);
- if (ctx)
- ctx->Driver.DeleteTransformFeedback(ctx, oldObj);
- }
-
- *ptr = NULL;
- }
- ASSERT(!*ptr);
-
- if (obj) {
- /* reference new object */
- if (obj->RefCount == 0) {
- _mesa_problem(NULL, "referencing deleted transform feedback object");
- *ptr = NULL;
- }
- else {
- obj->RefCount++;
- *ptr = obj;
- }
- }
-}
-
-
-/**
- * Check if the given primitive mode (as in glBegin(mode)) is compatible
- * with the current transform feedback mode (if it's enabled).
- * This is to be called from glBegin(), glDrawArrays(), glDrawElements(), etc.
- *
- * \return GL_TRUE if the mode is OK, GL_FALSE otherwise.
- */
-GLboolean
-_mesa_validate_primitive_mode(struct gl_context *ctx, GLenum mode)
-{
- if (ctx->TransformFeedback.CurrentObject->Active) {
- switch (mode) {
- case GL_POINTS:
- return ctx->TransformFeedback.Mode == GL_POINTS;
- case GL_LINES:
- case GL_LINE_STRIP:
- case GL_LINE_LOOP:
- return ctx->TransformFeedback.Mode == GL_LINES;
- default:
- return ctx->TransformFeedback.Mode == GL_TRIANGLES;
- }
- }
- return GL_TRUE;
-}
-
-
-/**
- * Check that all the buffer objects currently bound for transform
- * feedback actually exist. Raise a GL_INVALID_OPERATION error if
- * any buffers are missing.
- * \return GL_TRUE for success, GL_FALSE if error
- */
-GLboolean
-_mesa_validate_transform_feedback_buffers(struct gl_context *ctx)
-{
- /* XXX to do */
- return GL_TRUE;
-}
-
-
-
-/**
- * Per-context init for transform feedback.
- */
-void
-_mesa_init_transform_feedback(struct gl_context *ctx)
-{
- /* core mesa expects this, even a dummy one, to be available */
- ASSERT(ctx->Driver.NewTransformFeedback);
-
- ctx->TransformFeedback.DefaultObject =
- ctx->Driver.NewTransformFeedback(ctx, 0);
-
- assert(ctx->TransformFeedback.DefaultObject->RefCount == 1);
-
- reference_transform_feedback_object(&ctx->TransformFeedback.CurrentObject,
- ctx->TransformFeedback.DefaultObject);
-
- assert(ctx->TransformFeedback.DefaultObject->RefCount == 2);
-
- ctx->TransformFeedback.Objects = _mesa_NewHashTable();
-
- _mesa_reference_buffer_object(ctx,
- &ctx->TransformFeedback.CurrentBuffer,
- ctx->Shared->NullBufferObj);
-}
-
-
-
-/**
- * Callback for _mesa_HashDeleteAll().
- */
-static void
-delete_cb(GLuint key, void *data, void *userData)
-{
- struct gl_context *ctx = (struct gl_context *) userData;
- struct gl_transform_feedback_object *obj =
- (struct gl_transform_feedback_object *) data;
-
- ctx->Driver.DeleteTransformFeedback(ctx, obj);
-}
-
-
-/**
- * Per-context free/clean-up for transform feedback.
- */
-void
-_mesa_free_transform_feedback(struct gl_context *ctx)
-{
- /* core mesa expects this, even a dummy one, to be available */
- ASSERT(ctx->Driver.NewTransformFeedback);
-
- _mesa_reference_buffer_object(ctx,
- &ctx->TransformFeedback.CurrentBuffer,
- NULL);
-
- /* Delete all feedback objects */
- _mesa_HashDeleteAll(ctx->TransformFeedback.Objects, delete_cb, ctx);
- _mesa_DeleteHashTable(ctx->TransformFeedback.Objects);
-
- /* Delete the default feedback object */
- assert(ctx->Driver.DeleteTransformFeedback);
- ctx->Driver.DeleteTransformFeedback(ctx,
- ctx->TransformFeedback.DefaultObject);
-
- ctx->TransformFeedback.CurrentObject = NULL;
-}
-
-
-#else /* FEATURE_EXT_transform_feedback */
-
-/* forward declarations */
-static struct gl_transform_feedback_object *
-new_transform_feedback(struct gl_context *ctx, GLuint name);
-
-static void
-delete_transform_feedback(struct gl_context *ctx,
- struct gl_transform_feedback_object *obj);
-
-/* dummy per-context init/clean-up for transform feedback */
-void
-_mesa_init_transform_feedback(struct gl_context *ctx)
-{
- ctx->TransformFeedback.DefaultObject = new_transform_feedback(ctx, 0);
- ctx->TransformFeedback.CurrentObject = ctx->TransformFeedback.DefaultObject;
- _mesa_reference_buffer_object(ctx,
- &ctx->TransformFeedback.CurrentBuffer,
- ctx->Shared->NullBufferObj);
-}
-
-void
-_mesa_free_transform_feedback(struct gl_context *ctx)
-{
- _mesa_reference_buffer_object(ctx,
- &ctx->TransformFeedback.CurrentBuffer,
- NULL);
- ctx->TransformFeedback.CurrentObject = NULL;
- delete_transform_feedback(ctx, ctx->TransformFeedback.DefaultObject);
-}
-
-#endif /* FEATURE_EXT_transform_feedback */
-
-
-/** Default fallback for ctx->Driver.NewTransformFeedback() */
-static struct gl_transform_feedback_object *
-new_transform_feedback(struct gl_context *ctx, GLuint name)
-{
- struct gl_transform_feedback_object *obj;
- obj = CALLOC_STRUCT(gl_transform_feedback_object);
- if (obj) {
- obj->Name = name;
- obj->RefCount = 1;
- }
- return obj;
-}
-
-/** Default fallback for ctx->Driver.DeleteTransformFeedback() */
-static void
-delete_transform_feedback(struct gl_context *ctx,
- struct gl_transform_feedback_object *obj)
-{
- GLuint i;
-
- for (i = 0; i < Elements(obj->Buffers); i++) {
- _mesa_reference_buffer_object(ctx, &obj->Buffers[i], NULL);
- }
-
- free(obj);
-}
-
-
-#if FEATURE_EXT_transform_feedback
-
-
-/** Default fallback for ctx->Driver.BeginTransformFeedback() */
-static void
-begin_transform_feedback(struct gl_context *ctx, GLenum mode,
- struct gl_transform_feedback_object *obj)
-{
- /* nop */
-}
-
-/** Default fallback for ctx->Driver.EndTransformFeedback() */
-static void
-end_transform_feedback(struct gl_context *ctx,
- struct gl_transform_feedback_object *obj)
-{
- /* nop */
-}
-
-/** Default fallback for ctx->Driver.PauseTransformFeedback() */
-static void
-pause_transform_feedback(struct gl_context *ctx,
- struct gl_transform_feedback_object *obj)
-{
- /* nop */
-}
-
-/** Default fallback for ctx->Driver.ResumeTransformFeedback() */
-static void
-resume_transform_feedback(struct gl_context *ctx,
- struct gl_transform_feedback_object *obj)
-{
- /* nop */
-}
-
-/** Default fallback for ctx->Driver.DrawTransformFeedback() */
-static void
-draw_transform_feedback(struct gl_context *ctx, GLenum mode,
- struct gl_transform_feedback_object *obj)
-{
- /* XXX to do */
- /*
- * Get number of vertices in obj's feedback buffer.
- * Call ctx->Exec.DrawArrays(mode, 0, count);
- */
-}
-
-
-/**
- * Plug in default device driver functions for transform feedback.
- * Most drivers will override some/all of these.
- */
-void
-_mesa_init_transform_feedback_functions(struct dd_function_table *driver)
-{
- driver->NewTransformFeedback = new_transform_feedback;
- driver->DeleteTransformFeedback = delete_transform_feedback;
- driver->BeginTransformFeedback = begin_transform_feedback;
- driver->EndTransformFeedback = end_transform_feedback;
- driver->PauseTransformFeedback = pause_transform_feedback;
- driver->ResumeTransformFeedback = resume_transform_feedback;
- driver->DrawTransformFeedback = draw_transform_feedback;
-}
-
-
-void
-_mesa_init_transform_feedback_dispatch(struct _glapi_table *disp)
-{
- SET_BeginTransformFeedbackEXT(disp, _mesa_BeginTransformFeedback);
- SET_EndTransformFeedbackEXT(disp, _mesa_EndTransformFeedback);
- SET_BindBufferRangeEXT(disp, _mesa_BindBufferRange);
- SET_BindBufferBaseEXT(disp, _mesa_BindBufferBase);
- SET_BindBufferOffsetEXT(disp, _mesa_BindBufferOffsetEXT);
- SET_TransformFeedbackVaryingsEXT(disp, _mesa_TransformFeedbackVaryings);
- SET_GetTransformFeedbackVaryingEXT(disp, _mesa_GetTransformFeedbackVarying);
-}
-
-
-/**
- ** Begin API functions
- **/
-
-
-void GLAPIENTRY
-_mesa_BeginTransformFeedback(GLenum mode)
-{
- struct gl_transform_feedback_object *obj;
- GET_CURRENT_CONTEXT(ctx);
-
- obj = ctx->TransformFeedback.CurrentObject;
-
- switch (mode) {
- case GL_POINTS:
- case GL_LINES:
- case GL_TRIANGLES:
- /* legal */
- break;
- default:
- _mesa_error(ctx, GL_INVALID_ENUM, "glBeginTransformFeedback(mode)");
- return;
- }
-
- if (obj->Active) {
- _mesa_error(ctx, GL_INVALID_OPERATION,
- "glBeginTransformFeedback(already active)");
- return;
- }
-
- obj->Active = GL_TRUE;
- ctx->TransformFeedback.Mode = mode;
-
- assert(ctx->Driver.BeginTransformFeedback);
- ctx->Driver.BeginTransformFeedback(ctx, mode, obj);
-}
-
-
-void GLAPIENTRY
-_mesa_EndTransformFeedback(void)
-{
- struct gl_transform_feedback_object *obj;
- GET_CURRENT_CONTEXT(ctx);
-
- obj = ctx->TransformFeedback.CurrentObject;
-
- if (!obj->Active) {
- _mesa_error(ctx, GL_INVALID_OPERATION,
- "glEndTransformFeedback(not active)");
- return;
- }
-
- ctx->TransformFeedback.CurrentObject->Active = GL_FALSE;
-
- assert(ctx->Driver.EndTransformFeedback);
- ctx->Driver.EndTransformFeedback(ctx, obj);
-}
-
-
-/**
- * Helper used by BindBufferRange() and BindBufferBase().
- */
-static void
-bind_buffer_range(struct gl_context *ctx, GLuint index,
- struct gl_buffer_object *bufObj,
- GLintptr offset, GLsizeiptr size)
-{
- struct gl_transform_feedback_object *obj =
- ctx->TransformFeedback.CurrentObject;
-
- /* The general binding point */
- _mesa_reference_buffer_object(ctx,
- &ctx->TransformFeedback.CurrentBuffer,
- bufObj);
-
- /* The per-attribute binding point */
- _mesa_reference_buffer_object(ctx,
- &obj->Buffers[index],
- bufObj);
-
- obj->BufferNames[index] = bufObj->Name;
-
- obj->Offset[index] = offset;
- obj->Size[index] = size;
-}
-
-
-/**
- * Specify a buffer object to receive vertex shader results. Plus,
- * specify the starting offset to place the results, and max size.
- */
-void GLAPIENTRY
-_mesa_BindBufferRange(GLenum target, GLuint index,
- GLuint buffer, GLintptr offset, GLsizeiptr size)
-{
- struct gl_transform_feedback_object *obj;
- struct gl_buffer_object *bufObj;
- GET_CURRENT_CONTEXT(ctx);
-
- if (target != GL_TRANSFORM_FEEDBACK_BUFFER) {
- _mesa_error(ctx, GL_INVALID_ENUM, "glBindBufferRange(target)");
- return;
- }
-
- obj = ctx->TransformFeedback.CurrentObject;
-
- if (obj->Active) {
- _mesa_error(ctx, GL_INVALID_OPERATION,
- "glBindBufferRange(transform feedback active)");
- return;
- }
-
- if (index >= ctx->Const.MaxTransformFeedbackSeparateAttribs) {
- _mesa_error(ctx, GL_INVALID_VALUE, "glBindBufferRange(index=%d)", index);
- return;
- }
-
- if ((size <= 0) || (size & 0x3)) {
- /* must be positive and multiple of four */
- _mesa_error(ctx, GL_INVALID_VALUE, "glBindBufferRange(size%d)", (int) size);
- return;
- }
-
- if (offset & 0x3) {
- /* must be multiple of four */
- _mesa_error(ctx, GL_INVALID_VALUE,
- "glBindBufferRange(offset=%d)", (int) offset);
- return;
- }
-
- bufObj = _mesa_lookup_bufferobj(ctx, buffer);
- if (!bufObj) {
- _mesa_error(ctx, GL_INVALID_OPERATION,
- "glBindBufferRange(invalid buffer=%u)", buffer);
- return;
- }
-
- if (offset + size >= bufObj->Size) {
- _mesa_error(ctx, GL_INVALID_VALUE,
- "glBindBufferRange(offset + size %d > buffer size %d)",
- (int) (offset + size), (int) (bufObj->Size));
- return;
- }
-
- bind_buffer_range(ctx, index, bufObj, offset, size);
-}
-
-
-/**
- * Specify a buffer object to receive vertex shader results.
- * As above, but start at offset = 0.
- */
-void GLAPIENTRY
-_mesa_BindBufferBase(GLenum target, GLuint index, GLuint buffer)
-{
- struct gl_transform_feedback_object *obj;
- struct gl_buffer_object *bufObj;
- GLsizeiptr size;
- GET_CURRENT_CONTEXT(ctx);
-
- if (target != GL_TRANSFORM_FEEDBACK_BUFFER) {
- _mesa_error(ctx, GL_INVALID_ENUM, "glBindBufferBase(target)");
- return;
- }
-
- obj = ctx->TransformFeedback.CurrentObject;
-
- if (obj->Active) {
- _mesa_error(ctx, GL_INVALID_OPERATION,
- "glBindBufferBase(transform feedback active)");
- return;
- }
-
- if (index >= ctx->Const.MaxTransformFeedbackSeparateAttribs) {
- _mesa_error(ctx, GL_INVALID_VALUE, "glBindBufferBase(index=%d)", index);
- return;
- }
-
- bufObj = _mesa_lookup_bufferobj(ctx, buffer);
- if (!bufObj) {
- _mesa_error(ctx, GL_INVALID_OPERATION,
- "glBindBufferBase(invalid buffer=%u)", buffer);
- return;
- }
-
- /* default size is the buffer size rounded down to nearest
- * multiple of four.
- */
- size = bufObj->Size & ~0x3;
-
- bind_buffer_range(ctx, index, bufObj, 0, size);
-}
-
-
-/**
- * Specify a buffer object to receive vertex shader results, plus the
- * offset in the buffer to start placing results.
- * This function is part of GL_EXT_transform_feedback, but not GL3.
- */
-void GLAPIENTRY
-_mesa_BindBufferOffsetEXT(GLenum target, GLuint index, GLuint buffer,
- GLintptr offset)
-{
- struct gl_transform_feedback_object *obj;
- struct gl_buffer_object *bufObj;
- GET_CURRENT_CONTEXT(ctx);
- GLsizeiptr size;
-
- if (target != GL_TRANSFORM_FEEDBACK_BUFFER) {
- _mesa_error(ctx, GL_INVALID_ENUM, "glBindBufferOffsetEXT(target)");
- return;
- }
-
- obj = ctx->TransformFeedback.CurrentObject;
-
- if (obj->Active) {
- _mesa_error(ctx, GL_INVALID_OPERATION,
- "glBindBufferOffsetEXT(transform feedback active)");
- return;
- }
-
- if (index >= ctx->Const.MaxTransformFeedbackSeparateAttribs) {
- _mesa_error(ctx, GL_INVALID_VALUE,
- "glBindBufferOffsetEXT(index=%d)", index);
- return;
- }
-
- bufObj = _mesa_lookup_bufferobj(ctx, buffer);
- if (!bufObj) {
- _mesa_error(ctx, GL_INVALID_OPERATION,
- "glBindBufferOffsetEXT(invalid buffer=%u)", buffer);
- return;
- }
-
- /* default size is the buffer size rounded down to nearest
- * multiple of four.
- */
- size = (bufObj->Size - offset) & ~0x3;
-
- bind_buffer_range(ctx, index, bufObj, offset, size);
-}
-
-
-/**
- * This function specifies the vertex shader outputs to be written
- * to the feedback buffer(s), and in what order.
- */
-void GLAPIENTRY
-_mesa_TransformFeedbackVaryings(GLuint program, GLsizei count,
- const GLchar **varyings, GLenum bufferMode)
-{
- struct gl_shader_program *shProg;
- GLuint i;
- GET_CURRENT_CONTEXT(ctx);
-
- switch (bufferMode) {
- case GL_INTERLEAVED_ATTRIBS:
- break;
- case GL_SEPARATE_ATTRIBS:
- break;
- default:
- _mesa_error(ctx, GL_INVALID_ENUM,
- "glTransformFeedbackVaryings(bufferMode)");
- return;
- }
-
- if (count < 0 || count > ctx->Const.MaxTransformFeedbackSeparateAttribs) {
- _mesa_error(ctx, GL_INVALID_VALUE,
- "glTransformFeedbackVaryings(count=%d)", count);
- return;
- }
-
- shProg = _mesa_lookup_shader_program(ctx, program);
- if (!shProg) {
- _mesa_error(ctx, GL_INVALID_VALUE,
- "glTransformFeedbackVaryings(program=%u)", program);
- return;
- }
-
- /* free existing varyings, if any */
- for (i = 0; i < shProg->TransformFeedback.NumVarying; i++) {
- free(shProg->TransformFeedback.VaryingNames[i]);
- }
- free(shProg->TransformFeedback.VaryingNames);
-
- /* allocate new memory for varying names */
- shProg->TransformFeedback.VaryingNames =
- (GLchar **) malloc(count * sizeof(GLchar *));
-
- if (!shProg->TransformFeedback.VaryingNames) {
- _mesa_error(ctx, GL_OUT_OF_MEMORY, "glTransformFeedbackVaryings()");
- return;
- }
-
- /* Save the new names and the count */
- for (i = 0; i < (GLuint) count; i++) {
- shProg->TransformFeedback.VaryingNames[i] = _mesa_strdup(varyings[i]);
- }
- shProg->TransformFeedback.NumVarying = count;
-
- shProg->TransformFeedback.BufferMode = bufferMode;
-
- /* The varyings won't be used until shader link time */
-}
-
-
-/**
- * Get info about the vertex shader's outputs which are to be written
- * to the feedback buffer(s).
- */
-void GLAPIENTRY
-_mesa_GetTransformFeedbackVarying(GLuint program, GLuint index,
- GLsizei bufSize, GLsizei *length,
- GLsizei *size, GLenum *type, GLchar *name)
-{
- const struct gl_shader_program *shProg;
- const GLchar *varyingName;
- GLint v;
- GET_CURRENT_CONTEXT(ctx);
-
- shProg = _mesa_lookup_shader_program(ctx, program);
- if (!shProg) {
- _mesa_error(ctx, GL_INVALID_VALUE,
- "glGetTransformFeedbackVaryings(program=%u)", program);
- return;
- }
-
- if (index >= shProg->TransformFeedback.NumVarying) {
- _mesa_error(ctx, GL_INVALID_VALUE,
- "glGetTransformFeedbackVaryings(index=%u)", index);
- return;
- }
-
- varyingName = shProg->TransformFeedback.VaryingNames[index];
-
- v = _mesa_lookup_parameter_index(shProg->Varying, -1, varyingName);
- if (v >= 0) {
- struct gl_program_parameter *param = &shProg->Varying->Parameters[v];
-
- /* return the varying's name and length */
- _mesa_copy_string(name, bufSize, length, varyingName);
-
- /* return the datatype and value's size (in datatype units) */
- if (type)
- *type = param->DataType;
- if (size)
- *size = param->Size;
- }
- else {
- name[0] = 0;
- if (length)
- *length = 0;
- if (type)
- *type = 0;
- if (size)
- *size = 0;
- }
-}
-
-
-
-static struct gl_transform_feedback_object *
-lookup_transform_feedback_object(struct gl_context *ctx, GLuint name)
-{
- if (name == 0) {
- return ctx->TransformFeedback.DefaultObject;
- }
- else
- return (struct gl_transform_feedback_object *)
- _mesa_HashLookup(ctx->TransformFeedback.Objects, name);
-}
-
-
-/**
- * Create new transform feedback objects. Transform feedback objects
- * encapsulate the state related to transform feedback to allow quickly
- * switching state (and drawing the results, below).
- * Part of GL_ARB_transform_feedback2.
- */
-void GLAPIENTRY
-_mesa_GenTransformFeedbacks(GLsizei n, GLuint *names)
-{
- GLuint first;
- GET_CURRENT_CONTEXT(ctx);
-
- ASSERT_OUTSIDE_BEGIN_END(ctx);
-
- if (n < 0) {
- _mesa_error(ctx, GL_INVALID_VALUE, "glGenTransformFeedbacks(n < 0)");
- return;
- }
-
- if (!names)
- return;
-
- /* we don't need contiguous IDs, but this might be faster */
- first = _mesa_HashFindFreeKeyBlock(ctx->TransformFeedback.Objects, n);
- if (first) {
- GLsizei i;
- for (i = 0; i < n; i++) {
- struct gl_transform_feedback_object *obj
- = ctx->Driver.NewTransformFeedback(ctx, first + i);
- if (!obj) {
- _mesa_error(ctx, GL_OUT_OF_MEMORY, "glGenTransformFeedbacks");
- return;
- }
- names[i] = first + i;
- _mesa_HashInsert(ctx->TransformFeedback.Objects, first + i, obj);
- }
- }
- else {
- _mesa_error(ctx, GL_OUT_OF_MEMORY, "glGenTransformFeedbacks");
- }
-}
-
-
-/**
- * Is the given ID a transform feedback object?
- * Part of GL_ARB_transform_feedback2.
- */
-GLboolean GLAPIENTRY
-_mesa_IsTransformFeedback(GLuint name)
-{
- GET_CURRENT_CONTEXT(ctx);
-
- ASSERT_OUTSIDE_BEGIN_END_WITH_RETVAL(ctx, GL_FALSE);
-
- if (name && lookup_transform_feedback_object(ctx, name))
- return GL_TRUE;
- else
- return GL_FALSE;
-}
-
-
-/**
- * Bind the given transform feedback object.
- * Part of GL_ARB_transform_feedback2.
- */
-void GLAPIENTRY
-_mesa_BindTransformFeedback(GLenum target, GLuint name)
-{
- struct gl_transform_feedback_object *obj;
- GET_CURRENT_CONTEXT(ctx);
-
- if (target != GL_TRANSFORM_FEEDBACK) {
- _mesa_error(ctx, GL_INVALID_ENUM, "glBindTransformFeedback(target)");
- return;
- }
-
- if (ctx->TransformFeedback.CurrentObject->Active &&
- !ctx->TransformFeedback.CurrentObject->Paused) {
- _mesa_error(ctx, GL_INVALID_OPERATION,
- "glBindTransformFeedback(transform is active, or not paused)");
- return;
- }
-
- obj = lookup_transform_feedback_object(ctx, name);
- if (!obj) {
- _mesa_error(ctx, GL_INVALID_OPERATION,
- "glBindTransformFeedback(name=%u)", name);
- return;
- }
-
- reference_transform_feedback_object(&ctx->TransformFeedback.CurrentObject,
- obj);
-}
-
-
-/**
- * Delete the given transform feedback objects.
- * Part of GL_ARB_transform_feedback2.
- */
-void GLAPIENTRY
-_mesa_DeleteTransformFeedbacks(GLsizei n, const GLuint *names)
-{
- GLint i;
- GET_CURRENT_CONTEXT(ctx);
-
- ASSERT_OUTSIDE_BEGIN_END(ctx);
-
- if (n < 0) {
- _mesa_error(ctx, GL_INVALID_VALUE, "glDeleteTransformFeedbacks(n < 0)");
- return;
- }
-
- if (!names)
- return;
-
- for (i = 0; i < n; i++) {
- if (names[i] > 0) {
- struct gl_transform_feedback_object *obj
- = lookup_transform_feedback_object(ctx, names[i]);
- if (obj) {
- if (obj->Active) {
- _mesa_error(ctx, GL_INVALID_OPERATION,
- "glDeleteTransformFeedbacks(object %u is active)",
- names[i]);
- return;
- }
- _mesa_HashRemove(ctx->TransformFeedback.Objects, names[i]);
- /* unref, but object may not be deleted until later */
- reference_transform_feedback_object(&obj, NULL);
- }
- }
- }
-}
-
-
-/**
- * Pause transform feedback.
- * Part of GL_ARB_transform_feedback2.
- */
-void GLAPIENTRY
-_mesa_PauseTransformFeedback(void)
-{
- struct gl_transform_feedback_object *obj;
- GET_CURRENT_CONTEXT(ctx);
-
- obj = ctx->TransformFeedback.CurrentObject;
-
- if (!obj->Active || obj->Paused) {
- _mesa_error(ctx, GL_INVALID_OPERATION,
- "glPauseTransformFeedback(feedback not active or already paused)");
- return;
- }
-
- obj->Paused = GL_TRUE;
-
- assert(ctx->Driver.PauseTransformFeedback);
- ctx->Driver.PauseTransformFeedback(ctx, obj);
-}
-
-
-/**
- * Resume transform feedback.
- * Part of GL_ARB_transform_feedback2.
- */
-void GLAPIENTRY
-_mesa_ResumeTransformFeedback(void)
-{
- struct gl_transform_feedback_object *obj;
- GET_CURRENT_CONTEXT(ctx);
-
- obj = ctx->TransformFeedback.CurrentObject;
-
- if (!obj->Active || !obj->Paused) {
- _mesa_error(ctx, GL_INVALID_OPERATION,
- "glResumeTransformFeedback(feedback not active or not paused)");
- return;
- }
-
- obj->Paused = GL_FALSE;
-
- assert(ctx->Driver.ResumeTransformFeedback);
- ctx->Driver.ResumeTransformFeedback(ctx, obj);
-}
-
-
-/**
- * Draw the vertex data in a transform feedback object.
- * \param mode GL_POINTS, GL_LINES, GL_TRIANGLE_STRIP, etc.
- * \param name the transform feedback object
- * The number of vertices comes from the transform feedback object.
- * User still has to setup of the vertex attribute info with
- * glVertexPointer, glColorPointer, etc.
- * Part of GL_ARB_transform_feedback2.
- */
-void GLAPIENTRY
-_mesa_DrawTransformFeedback(GLenum mode, GLuint name)
-{
- GET_CURRENT_CONTEXT(ctx);
- struct gl_transform_feedback_object *obj =
- lookup_transform_feedback_object(ctx, name);
-
- if (mode > GL_POLYGON) {
- _mesa_error(ctx, GL_INVALID_ENUM,
- "glDrawTransformFeedback(mode=0x%x)", mode);
- return;
- }
- if (!obj) {
- _mesa_error(ctx, GL_INVALID_VALUE,
- "glDrawTransformFeedback(name = %u)", name);
- return;
- }
-
- /* XXX check if EndTransformFeedback has never been called while
- * the object was bound
- */
-
- assert(ctx->Driver.DrawTransformFeedback);
- ctx->Driver.DrawTransformFeedback(ctx, mode, obj);
-}
-
-
-#endif /* FEATURE_EXT_transform_feedback */
+/* + * Mesa 3-D graphics library + * + * Copyright (C) 2010 VMware, Inc. All Rights Reserved. + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the "Software"), + * to deal in the Software without restriction, including without limitation + * the rights to use, copy, modify, merge, publish, distribute, sublicense, + * and/or sell copies of the Software, and to permit persons to whom the + * Software is furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included + * in all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS + * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL + * THE AUTHORS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN + * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN + * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. + */ + + +/* + * Vertex transform feedback support. + * + * Authors: + * Brian Paul + */ + + +#include "buffers.h" +#include "bufferobj.h" +#include "context.h" +#include "hash.h" +#include "mfeatures.h" +#include "mtypes.h" +#include "transformfeedback.h" +#include "shaderapi.h" +#include "shaderobj.h" +#include "main/dispatch.h" + +#include "program/prog_parameter.h" + + +#if FEATURE_EXT_transform_feedback + + +/** + * Do reference counting of transform feedback buffers. + */ +static void +reference_transform_feedback_object(struct gl_transform_feedback_object **ptr, + struct gl_transform_feedback_object *obj) +{ + if (*ptr == obj) + return; + + if (*ptr) { + /* Unreference the old object */ + struct gl_transform_feedback_object *oldObj = *ptr; + + ASSERT(oldObj->RefCount > 0); + oldObj->RefCount--; + + if (oldObj->RefCount == 0) { + GET_CURRENT_CONTEXT(ctx); + if (ctx) + ctx->Driver.DeleteTransformFeedback(ctx, oldObj); + } + + *ptr = NULL; + } + ASSERT(!*ptr); + + if (obj) { + /* reference new object */ + if (obj->RefCount == 0) { + _mesa_problem(NULL, "referencing deleted transform feedback object"); + *ptr = NULL; + } + else { + obj->RefCount++; + *ptr = obj; + } + } +} + + +/** + * Check if the given primitive mode (as in glBegin(mode)) is compatible + * with the current transform feedback mode (if it's enabled). + * This is to be called from glBegin(), glDrawArrays(), glDrawElements(), etc. + * + * \return GL_TRUE if the mode is OK, GL_FALSE otherwise. + */ +GLboolean +_mesa_validate_primitive_mode(struct gl_context *ctx, GLenum mode) +{ + if (ctx->TransformFeedback.CurrentObject->Active) { + switch (mode) { + case GL_POINTS: + return ctx->TransformFeedback.Mode == GL_POINTS; + case GL_LINES: + case GL_LINE_STRIP: + case GL_LINE_LOOP: + return ctx->TransformFeedback.Mode == GL_LINES; + default: + return ctx->TransformFeedback.Mode == GL_TRIANGLES; + } + } + return GL_TRUE; +} + + +/** + * Check that all the buffer objects currently bound for transform + * feedback actually exist. Raise a GL_INVALID_OPERATION error if + * any buffers are missing. + * \return GL_TRUE for success, GL_FALSE if error + */ +GLboolean +_mesa_validate_transform_feedback_buffers(struct gl_context *ctx) +{ + /* XXX to do */ + return GL_TRUE; +} + + + +/** + * Per-context init for transform feedback. + */ +void +_mesa_init_transform_feedback(struct gl_context *ctx) +{ + /* core mesa expects this, even a dummy one, to be available */ + ASSERT(ctx->Driver.NewTransformFeedback); + + ctx->TransformFeedback.DefaultObject = + ctx->Driver.NewTransformFeedback(ctx, 0); + + assert(ctx->TransformFeedback.DefaultObject->RefCount == 1); + + reference_transform_feedback_object(&ctx->TransformFeedback.CurrentObject, + ctx->TransformFeedback.DefaultObject); + + assert(ctx->TransformFeedback.DefaultObject->RefCount == 2); + + ctx->TransformFeedback.Objects = _mesa_NewHashTable(); + + _mesa_reference_buffer_object(ctx, + &ctx->TransformFeedback.CurrentBuffer, + ctx->Shared->NullBufferObj); +} + + + +/** + * Callback for _mesa_HashDeleteAll(). + */ +static void +delete_cb(GLuint key, void *data, void *userData) +{ + struct gl_context *ctx = (struct gl_context *) userData; + struct gl_transform_feedback_object *obj = + (struct gl_transform_feedback_object *) data; + + ctx->Driver.DeleteTransformFeedback(ctx, obj); +} + + +/** + * Per-context free/clean-up for transform feedback. + */ +void +_mesa_free_transform_feedback(struct gl_context *ctx) +{ + /* core mesa expects this, even a dummy one, to be available */ + ASSERT(ctx->Driver.NewTransformFeedback); + + _mesa_reference_buffer_object(ctx, + &ctx->TransformFeedback.CurrentBuffer, + NULL); + + /* Delete all feedback objects */ + _mesa_HashDeleteAll(ctx->TransformFeedback.Objects, delete_cb, ctx); + _mesa_DeleteHashTable(ctx->TransformFeedback.Objects); + + /* Delete the default feedback object */ + assert(ctx->Driver.DeleteTransformFeedback); + ctx->Driver.DeleteTransformFeedback(ctx, + ctx->TransformFeedback.DefaultObject); + + ctx->TransformFeedback.CurrentObject = NULL; +} + + +#else /* FEATURE_EXT_transform_feedback */ + +/* forward declarations */ +static struct gl_transform_feedback_object * +new_transform_feedback(struct gl_context *ctx, GLuint name); + +static void +delete_transform_feedback(struct gl_context *ctx, + struct gl_transform_feedback_object *obj); + +/* dummy per-context init/clean-up for transform feedback */ +void +_mesa_init_transform_feedback(struct gl_context *ctx) +{ + ctx->TransformFeedback.DefaultObject = new_transform_feedback(ctx, 0); + ctx->TransformFeedback.CurrentObject = ctx->TransformFeedback.DefaultObject; + _mesa_reference_buffer_object(ctx, + &ctx->TransformFeedback.CurrentBuffer, + ctx->Shared->NullBufferObj); +} + +void +_mesa_free_transform_feedback(struct gl_context *ctx) +{ + _mesa_reference_buffer_object(ctx, + &ctx->TransformFeedback.CurrentBuffer, + NULL); + ctx->TransformFeedback.CurrentObject = NULL; + delete_transform_feedback(ctx, ctx->TransformFeedback.DefaultObject); +} + +#endif /* FEATURE_EXT_transform_feedback */ + + +/** Default fallback for ctx->Driver.NewTransformFeedback() */ +static struct gl_transform_feedback_object * +new_transform_feedback(struct gl_context *ctx, GLuint name) +{ + struct gl_transform_feedback_object *obj; + obj = CALLOC_STRUCT(gl_transform_feedback_object); + if (obj) { + obj->Name = name; + obj->RefCount = 1; + } + return obj; +} + +/** Default fallback for ctx->Driver.DeleteTransformFeedback() */ +static void +delete_transform_feedback(struct gl_context *ctx, + struct gl_transform_feedback_object *obj) +{ + GLuint i; + + for (i = 0; i < Elements(obj->Buffers); i++) { + _mesa_reference_buffer_object(ctx, &obj->Buffers[i], NULL); + } + + free(obj); +} + + +#if FEATURE_EXT_transform_feedback + + +/** Default fallback for ctx->Driver.BeginTransformFeedback() */ +static void +begin_transform_feedback(struct gl_context *ctx, GLenum mode, + struct gl_transform_feedback_object *obj) +{ + /* nop */ +} + +/** Default fallback for ctx->Driver.EndTransformFeedback() */ +static void +end_transform_feedback(struct gl_context *ctx, + struct gl_transform_feedback_object *obj) +{ + /* nop */ +} + +/** Default fallback for ctx->Driver.PauseTransformFeedback() */ +static void +pause_transform_feedback(struct gl_context *ctx, + struct gl_transform_feedback_object *obj) +{ + /* nop */ +} + +/** Default fallback for ctx->Driver.ResumeTransformFeedback() */ +static void +resume_transform_feedback(struct gl_context *ctx, + struct gl_transform_feedback_object *obj) +{ + /* nop */ +} + +/** Default fallback for ctx->Driver.DrawTransformFeedback() */ +static void +draw_transform_feedback(struct gl_context *ctx, GLenum mode, + struct gl_transform_feedback_object *obj) +{ + /* XXX to do */ + /* + * Get number of vertices in obj's feedback buffer. + * Call ctx->Exec.DrawArrays(mode, 0, count); + */ +} + + +/** + * Plug in default device driver functions for transform feedback. + * Most drivers will override some/all of these. + */ +void +_mesa_init_transform_feedback_functions(struct dd_function_table *driver) +{ + driver->NewTransformFeedback = new_transform_feedback; + driver->DeleteTransformFeedback = delete_transform_feedback; + driver->BeginTransformFeedback = begin_transform_feedback; + driver->EndTransformFeedback = end_transform_feedback; + driver->PauseTransformFeedback = pause_transform_feedback; + driver->ResumeTransformFeedback = resume_transform_feedback; + driver->DrawTransformFeedback = draw_transform_feedback; +} + + +void +_mesa_init_transform_feedback_dispatch(struct _glapi_table *disp) +{ + /* EXT_transform_feedback */ + SET_BeginTransformFeedbackEXT(disp, _mesa_BeginTransformFeedback); + SET_EndTransformFeedbackEXT(disp, _mesa_EndTransformFeedback); + SET_BindBufferRangeEXT(disp, _mesa_BindBufferRange); + SET_BindBufferBaseEXT(disp, _mesa_BindBufferBase); + SET_BindBufferOffsetEXT(disp, _mesa_BindBufferOffsetEXT); + SET_TransformFeedbackVaryingsEXT(disp, _mesa_TransformFeedbackVaryings); + SET_GetTransformFeedbackVaryingEXT(disp, _mesa_GetTransformFeedbackVarying); + /* ARB_transform_feedback2 */ + SET_BindTransformFeedback(disp, _mesa_BindTransformFeedback); + SET_DeleteTransformFeedbacks(disp, _mesa_DeleteTransformFeedbacks); + SET_GenTransformFeedbacks(disp, _mesa_GenTransformFeedbacks); + SET_IsTransformFeedback(disp, _mesa_IsTransformFeedback); + SET_PauseTransformFeedback(disp, _mesa_PauseTransformFeedback); + SET_ResumeTransformFeedback(disp, _mesa_ResumeTransformFeedback); + SET_DrawTransformFeedback(disp, _mesa_DrawTransformFeedback); +} + + +/** + ** Begin API functions + **/ + + +void GLAPIENTRY +_mesa_BeginTransformFeedback(GLenum mode) +{ + struct gl_transform_feedback_object *obj; + GET_CURRENT_CONTEXT(ctx); + + obj = ctx->TransformFeedback.CurrentObject; + + switch (mode) { + case GL_POINTS: + case GL_LINES: + case GL_TRIANGLES: + /* legal */ + break; + default: + _mesa_error(ctx, GL_INVALID_ENUM, "glBeginTransformFeedback(mode)"); + return; + } + + if (obj->Active) { + _mesa_error(ctx, GL_INVALID_OPERATION, + "glBeginTransformFeedback(already active)"); + return; + } + + obj->Active = GL_TRUE; + ctx->TransformFeedback.Mode = mode; + + assert(ctx->Driver.BeginTransformFeedback); + ctx->Driver.BeginTransformFeedback(ctx, mode, obj); +} + + +void GLAPIENTRY +_mesa_EndTransformFeedback(void) +{ + struct gl_transform_feedback_object *obj; + GET_CURRENT_CONTEXT(ctx); + + obj = ctx->TransformFeedback.CurrentObject; + + if (!obj->Active) { + _mesa_error(ctx, GL_INVALID_OPERATION, + "glEndTransformFeedback(not active)"); + return; + } + + ctx->TransformFeedback.CurrentObject->Active = GL_FALSE; + + assert(ctx->Driver.EndTransformFeedback); + ctx->Driver.EndTransformFeedback(ctx, obj); +} + + +/** + * Helper used by BindBufferRange() and BindBufferBase(). + */ +static void +bind_buffer_range(struct gl_context *ctx, GLuint index, + struct gl_buffer_object *bufObj, + GLintptr offset, GLsizeiptr size) +{ + struct gl_transform_feedback_object *obj = + ctx->TransformFeedback.CurrentObject; + + /* The general binding point */ + _mesa_reference_buffer_object(ctx, + &ctx->TransformFeedback.CurrentBuffer, + bufObj); + + /* The per-attribute binding point */ + _mesa_reference_buffer_object(ctx, + &obj->Buffers[index], + bufObj); + + obj->BufferNames[index] = bufObj->Name; + + obj->Offset[index] = offset; + obj->Size[index] = size; +} + + +/** + * Specify a buffer object to receive vertex shader results. Plus, + * specify the starting offset to place the results, and max size. + */ +void GLAPIENTRY +_mesa_BindBufferRange(GLenum target, GLuint index, + GLuint buffer, GLintptr offset, GLsizeiptr size) +{ + struct gl_transform_feedback_object *obj; + struct gl_buffer_object *bufObj; + GET_CURRENT_CONTEXT(ctx); + + if (target != GL_TRANSFORM_FEEDBACK_BUFFER) { + _mesa_error(ctx, GL_INVALID_ENUM, "glBindBufferRange(target)"); + return; + } + + obj = ctx->TransformFeedback.CurrentObject; + + if (obj->Active) { + _mesa_error(ctx, GL_INVALID_OPERATION, + "glBindBufferRange(transform feedback active)"); + return; + } + + if (index >= ctx->Const.MaxTransformFeedbackSeparateAttribs) { + _mesa_error(ctx, GL_INVALID_VALUE, "glBindBufferRange(index=%d)", index); + return; + } + + if ((size <= 0) || (size & 0x3)) { + /* must be positive and multiple of four */ + _mesa_error(ctx, GL_INVALID_VALUE, "glBindBufferRange(size%d)", (int) size); + return; + } + + if (offset & 0x3) { + /* must be multiple of four */ + _mesa_error(ctx, GL_INVALID_VALUE, + "glBindBufferRange(offset=%d)", (int) offset); + return; + } + + bufObj = _mesa_lookup_bufferobj(ctx, buffer); + if (!bufObj) { + _mesa_error(ctx, GL_INVALID_OPERATION, + "glBindBufferRange(invalid buffer=%u)", buffer); + return; + } + + if (offset + size >= bufObj->Size) { + _mesa_error(ctx, GL_INVALID_VALUE, + "glBindBufferRange(offset + size %d > buffer size %d)", + (int) (offset + size), (int) (bufObj->Size)); + return; + } + + bind_buffer_range(ctx, index, bufObj, offset, size); +} + + +/** + * Specify a buffer object to receive vertex shader results. + * As above, but start at offset = 0. + */ +void GLAPIENTRY +_mesa_BindBufferBase(GLenum target, GLuint index, GLuint buffer) +{ + struct gl_transform_feedback_object *obj; + struct gl_buffer_object *bufObj; + GLsizeiptr size; + GET_CURRENT_CONTEXT(ctx); + + if (target != GL_TRANSFORM_FEEDBACK_BUFFER) { + _mesa_error(ctx, GL_INVALID_ENUM, "glBindBufferBase(target)"); + return; + } + + obj = ctx->TransformFeedback.CurrentObject; + + if (obj->Active) { + _mesa_error(ctx, GL_INVALID_OPERATION, + "glBindBufferBase(transform feedback active)"); + return; + } + + if (index >= ctx->Const.MaxTransformFeedbackSeparateAttribs) { + _mesa_error(ctx, GL_INVALID_VALUE, "glBindBufferBase(index=%d)", index); + return; + } + + bufObj = _mesa_lookup_bufferobj(ctx, buffer); + if (!bufObj) { + _mesa_error(ctx, GL_INVALID_OPERATION, + "glBindBufferBase(invalid buffer=%u)", buffer); + return; + } + + /* default size is the buffer size rounded down to nearest + * multiple of four. + */ + size = bufObj->Size & ~0x3; + + bind_buffer_range(ctx, index, bufObj, 0, size); +} + + +/** + * Specify a buffer object to receive vertex shader results, plus the + * offset in the buffer to start placing results. + * This function is part of GL_EXT_transform_feedback, but not GL3. + */ +void GLAPIENTRY +_mesa_BindBufferOffsetEXT(GLenum target, GLuint index, GLuint buffer, + GLintptr offset) +{ + struct gl_transform_feedback_object *obj; + struct gl_buffer_object *bufObj; + GET_CURRENT_CONTEXT(ctx); + GLsizeiptr size; + + if (target != GL_TRANSFORM_FEEDBACK_BUFFER) { + _mesa_error(ctx, GL_INVALID_ENUM, "glBindBufferOffsetEXT(target)"); + return; + } + + obj = ctx->TransformFeedback.CurrentObject; + + if (obj->Active) { + _mesa_error(ctx, GL_INVALID_OPERATION, + "glBindBufferOffsetEXT(transform feedback active)"); + return; + } + + if (index >= ctx->Const.MaxTransformFeedbackSeparateAttribs) { + _mesa_error(ctx, GL_INVALID_VALUE, + "glBindBufferOffsetEXT(index=%d)", index); + return; + } + + bufObj = _mesa_lookup_bufferobj(ctx, buffer); + if (!bufObj) { + _mesa_error(ctx, GL_INVALID_OPERATION, + "glBindBufferOffsetEXT(invalid buffer=%u)", buffer); + return; + } + + /* default size is the buffer size rounded down to nearest + * multiple of four. + */ + size = (bufObj->Size - offset) & ~0x3; + + bind_buffer_range(ctx, index, bufObj, offset, size); +} + + +/** + * This function specifies the vertex shader outputs to be written + * to the feedback buffer(s), and in what order. + */ +void GLAPIENTRY +_mesa_TransformFeedbackVaryings(GLuint program, GLsizei count, + const GLchar **varyings, GLenum bufferMode) +{ + struct gl_shader_program *shProg; + GLuint i; + GET_CURRENT_CONTEXT(ctx); + + switch (bufferMode) { + case GL_INTERLEAVED_ATTRIBS: + break; + case GL_SEPARATE_ATTRIBS: + break; + default: + _mesa_error(ctx, GL_INVALID_ENUM, + "glTransformFeedbackVaryings(bufferMode)"); + return; + } + + if (count < 0 || + (bufferMode == GL_SEPARATE_ATTRIBS && + count > ctx->Const.MaxTransformFeedbackSeparateAttribs)) { + _mesa_error(ctx, GL_INVALID_VALUE, + "glTransformFeedbackVaryings(count=%d)", count); + return; + } + + shProg = _mesa_lookup_shader_program(ctx, program); + if (!shProg) { + _mesa_error(ctx, GL_INVALID_VALUE, + "glTransformFeedbackVaryings(program=%u)", program); + return; + } + + /* free existing varyings, if any */ + for (i = 0; i < shProg->TransformFeedback.NumVarying; i++) { + free(shProg->TransformFeedback.VaryingNames[i]); + } + free(shProg->TransformFeedback.VaryingNames); + + /* allocate new memory for varying names */ + shProg->TransformFeedback.VaryingNames = + (GLchar **) malloc(count * sizeof(GLchar *)); + + if (!shProg->TransformFeedback.VaryingNames) { + _mesa_error(ctx, GL_OUT_OF_MEMORY, "glTransformFeedbackVaryings()"); + return; + } + + /* Save the new names and the count */ + for (i = 0; i < (GLuint) count; i++) { + shProg->TransformFeedback.VaryingNames[i] = _mesa_strdup(varyings[i]); + } + shProg->TransformFeedback.NumVarying = count; + + shProg->TransformFeedback.BufferMode = bufferMode; + + /* The varyings won't be used until shader link time */ +} + + +/** + * Get info about the vertex shader's outputs which are to be written + * to the feedback buffer(s). + */ +void GLAPIENTRY +_mesa_GetTransformFeedbackVarying(GLuint program, GLuint index, + GLsizei bufSize, GLsizei *length, + GLsizei *size, GLenum *type, GLchar *name) +{ + const struct gl_shader_program *shProg; + const GLchar *varyingName; + GLint v; + GET_CURRENT_CONTEXT(ctx); + + shProg = _mesa_lookup_shader_program(ctx, program); + if (!shProg) { + _mesa_error(ctx, GL_INVALID_VALUE, + "glGetTransformFeedbackVaryings(program=%u)", program); + return; + } + + if (index >= shProg->TransformFeedback.NumVarying) { + _mesa_error(ctx, GL_INVALID_VALUE, + "glGetTransformFeedbackVaryings(index=%u)", index); + return; + } + + varyingName = shProg->TransformFeedback.VaryingNames[index]; + + v = _mesa_lookup_parameter_index(shProg->Varying, -1, varyingName); + if (v >= 0) { + struct gl_program_parameter *param = &shProg->Varying->Parameters[v]; + + /* return the varying's name and length */ + _mesa_copy_string(name, bufSize, length, varyingName); + + /* return the datatype and value's size (in datatype units) */ + if (type) + *type = param->DataType; + if (size) + *size = param->Size; + } + else { + name[0] = 0; + if (length) + *length = 0; + if (type) + *type = 0; + if (size) + *size = 0; + } +} + + + +static struct gl_transform_feedback_object * +lookup_transform_feedback_object(struct gl_context *ctx, GLuint name) +{ + if (name == 0) { + return ctx->TransformFeedback.DefaultObject; + } + else + return (struct gl_transform_feedback_object *) + _mesa_HashLookup(ctx->TransformFeedback.Objects, name); +} + + +/** + * Create new transform feedback objects. Transform feedback objects + * encapsulate the state related to transform feedback to allow quickly + * switching state (and drawing the results, below). + * Part of GL_ARB_transform_feedback2. + */ +void GLAPIENTRY +_mesa_GenTransformFeedbacks(GLsizei n, GLuint *names) +{ + GLuint first; + GET_CURRENT_CONTEXT(ctx); + + ASSERT_OUTSIDE_BEGIN_END(ctx); + + if (n < 0) { + _mesa_error(ctx, GL_INVALID_VALUE, "glGenTransformFeedbacks(n < 0)"); + return; + } + + if (!names) + return; + + /* we don't need contiguous IDs, but this might be faster */ + first = _mesa_HashFindFreeKeyBlock(ctx->TransformFeedback.Objects, n); + if (first) { + GLsizei i; + for (i = 0; i < n; i++) { + struct gl_transform_feedback_object *obj + = ctx->Driver.NewTransformFeedback(ctx, first + i); + if (!obj) { + _mesa_error(ctx, GL_OUT_OF_MEMORY, "glGenTransformFeedbacks"); + return; + } + names[i] = first + i; + _mesa_HashInsert(ctx->TransformFeedback.Objects, first + i, obj); + } + } + else { + _mesa_error(ctx, GL_OUT_OF_MEMORY, "glGenTransformFeedbacks"); + } +} + + +/** + * Is the given ID a transform feedback object? + * Part of GL_ARB_transform_feedback2. + */ +GLboolean GLAPIENTRY +_mesa_IsTransformFeedback(GLuint name) +{ + GET_CURRENT_CONTEXT(ctx); + + ASSERT_OUTSIDE_BEGIN_END_WITH_RETVAL(ctx, GL_FALSE); + + if (name && lookup_transform_feedback_object(ctx, name)) + return GL_TRUE; + else + return GL_FALSE; +} + + +/** + * Bind the given transform feedback object. + * Part of GL_ARB_transform_feedback2. + */ +void GLAPIENTRY +_mesa_BindTransformFeedback(GLenum target, GLuint name) +{ + struct gl_transform_feedback_object *obj; + GET_CURRENT_CONTEXT(ctx); + + if (target != GL_TRANSFORM_FEEDBACK) { + _mesa_error(ctx, GL_INVALID_ENUM, "glBindTransformFeedback(target)"); + return; + } + + if (ctx->TransformFeedback.CurrentObject->Active && + !ctx->TransformFeedback.CurrentObject->Paused) { + _mesa_error(ctx, GL_INVALID_OPERATION, + "glBindTransformFeedback(transform is active, or not paused)"); + return; + } + + obj = lookup_transform_feedback_object(ctx, name); + if (!obj) { + _mesa_error(ctx, GL_INVALID_OPERATION, + "glBindTransformFeedback(name=%u)", name); + return; + } + + reference_transform_feedback_object(&ctx->TransformFeedback.CurrentObject, + obj); +} + + +/** + * Delete the given transform feedback objects. + * Part of GL_ARB_transform_feedback2. + */ +void GLAPIENTRY +_mesa_DeleteTransformFeedbacks(GLsizei n, const GLuint *names) +{ + GLint i; + GET_CURRENT_CONTEXT(ctx); + + ASSERT_OUTSIDE_BEGIN_END(ctx); + + if (n < 0) { + _mesa_error(ctx, GL_INVALID_VALUE, "glDeleteTransformFeedbacks(n < 0)"); + return; + } + + if (!names) + return; + + for (i = 0; i < n; i++) { + if (names[i] > 0) { + struct gl_transform_feedback_object *obj + = lookup_transform_feedback_object(ctx, names[i]); + if (obj) { + if (obj->Active) { + _mesa_error(ctx, GL_INVALID_OPERATION, + "glDeleteTransformFeedbacks(object %u is active)", + names[i]); + return; + } + _mesa_HashRemove(ctx->TransformFeedback.Objects, names[i]); + /* unref, but object may not be deleted until later */ + reference_transform_feedback_object(&obj, NULL); + } + } + } +} + + +/** + * Pause transform feedback. + * Part of GL_ARB_transform_feedback2. + */ +void GLAPIENTRY +_mesa_PauseTransformFeedback(void) +{ + struct gl_transform_feedback_object *obj; + GET_CURRENT_CONTEXT(ctx); + + obj = ctx->TransformFeedback.CurrentObject; + + if (!obj->Active || obj->Paused) { + _mesa_error(ctx, GL_INVALID_OPERATION, + "glPauseTransformFeedback(feedback not active or already paused)"); + return; + } + + obj->Paused = GL_TRUE; + + assert(ctx->Driver.PauseTransformFeedback); + ctx->Driver.PauseTransformFeedback(ctx, obj); +} + + +/** + * Resume transform feedback. + * Part of GL_ARB_transform_feedback2. + */ +void GLAPIENTRY +_mesa_ResumeTransformFeedback(void) +{ + struct gl_transform_feedback_object *obj; + GET_CURRENT_CONTEXT(ctx); + + obj = ctx->TransformFeedback.CurrentObject; + + if (!obj->Active || !obj->Paused) { + _mesa_error(ctx, GL_INVALID_OPERATION, + "glResumeTransformFeedback(feedback not active or not paused)"); + return; + } + + obj->Paused = GL_FALSE; + + assert(ctx->Driver.ResumeTransformFeedback); + ctx->Driver.ResumeTransformFeedback(ctx, obj); +} + + +/** + * Draw the vertex data in a transform feedback object. + * \param mode GL_POINTS, GL_LINES, GL_TRIANGLE_STRIP, etc. + * \param name the transform feedback object + * The number of vertices comes from the transform feedback object. + * User still has to setup of the vertex attribute info with + * glVertexPointer, glColorPointer, etc. + * Part of GL_ARB_transform_feedback2. + */ +void GLAPIENTRY +_mesa_DrawTransformFeedback(GLenum mode, GLuint name) +{ + GET_CURRENT_CONTEXT(ctx); + struct gl_transform_feedback_object *obj = + lookup_transform_feedback_object(ctx, name); + + if (mode > GL_POLYGON) { + _mesa_error(ctx, GL_INVALID_ENUM, + "glDrawTransformFeedback(mode=0x%x)", mode); + return; + } + if (!obj) { + _mesa_error(ctx, GL_INVALID_VALUE, + "glDrawTransformFeedback(name = %u)", name); + return; + } + + /* XXX check if EndTransformFeedback has never been called while + * the object was bound + */ + + assert(ctx->Driver.DrawTransformFeedback); + ctx->Driver.DrawTransformFeedback(ctx, mode, obj); +} + +#endif /* FEATURE_EXT_transform_feedback */ diff --git a/mesalib/src/mesa/program/ir_to_mesa.cpp b/mesalib/src/mesa/program/ir_to_mesa.cpp index bdbb6b938..93563bdaa 100644 --- a/mesalib/src/mesa/program/ir_to_mesa.cpp +++ b/mesalib/src/mesa/program/ir_to_mesa.cpp @@ -3191,7 +3191,7 @@ get_mesa_program(struct gl_context *ctx, prog->Instructions = mesa_instructions; prog->NumInstructions = num_instructions; - do_set_program_inouts(shader->ir, prog); + do_set_program_inouts(shader->ir, prog, shader->Type == GL_FRAGMENT_SHADER); count_resources(prog); check_resources(ctx, shader_program, prog); diff --git a/mesalib/src/mesa/state_tracker/st_glsl_to_tgsi.cpp b/mesalib/src/mesa/state_tracker/st_glsl_to_tgsi.cpp index 145bd7dcd..67a1b513b 100644 --- a/mesalib/src/mesa/state_tracker/st_glsl_to_tgsi.cpp +++ b/mesalib/src/mesa/state_tracker/st_glsl_to_tgsi.cpp @@ -4966,7 +4966,7 @@ get_mesa_program(struct gl_context *ctx, prog->Instructions = NULL; prog->NumInstructions = 0; - do_set_program_inouts(shader->ir, prog); + do_set_program_inouts(shader->ir, prog, shader->Type == GL_FRAGMENT_SHADER); count_resources(v, prog); check_resources(ctx, shader_program, v, prog); |