diff options
Diffstat (limited to 'mesalib/src/mesa/vbo/vbo_exec_api.c')
| -rw-r--r-- | mesalib/src/mesa/vbo/vbo_exec_api.c | 838 |
1 files changed, 838 insertions, 0 deletions
diff --git a/mesalib/src/mesa/vbo/vbo_exec_api.c b/mesalib/src/mesa/vbo/vbo_exec_api.c new file mode 100644 index 000000000..387d4ee3d --- /dev/null +++ b/mesalib/src/mesa/vbo/vbo_exec_api.c @@ -0,0 +1,838 @@ +/************************************************************************** + +Copyright 2002-2008 Tungsten Graphics Inc., Cedar Park, Texas. + +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 +on the rights to use, copy, modify, merge, publish, distribute, sub +license, 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 (including the next +paragraph) 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 NON-INFRINGEMENT. IN NO EVENT SHALL +TUNGSTEN GRAPHICS AND/OR THEIR SUPPLIERS 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. + +**************************************************************************/ + +/* + * Authors: + * Keith Whitwell <keith@tungstengraphics.com> + */ + +#include "main/glheader.h" +#include "main/bufferobj.h" +#include "main/context.h" +#include "main/macros.h" +#include "main/vtxfmt.h" +#if FEATURE_dlist +#include "main/dlist.h" +#endif +#include "main/state.h" +#include "main/light.h" +#include "main/api_arrayelt.h" +#include "main/api_noop.h" +#include "glapi/dispatch.h" + +#include "vbo_context.h" + +#ifdef ERROR +#undef ERROR +#endif + + +/** ID/name for immediate-mode VBO */ +#define IMM_BUFFER_NAME 0xaabbccdd + + +static void reset_attrfv( struct vbo_exec_context *exec ); + + +/* Close off the last primitive, execute the buffer, restart the + * primitive. + */ +static void vbo_exec_wrap_buffers( struct vbo_exec_context *exec ) +{ + if (exec->vtx.prim_count == 0) { + exec->vtx.copied.nr = 0; + exec->vtx.vert_count = 0; + exec->vtx.buffer_ptr = exec->vtx.buffer_map; + } + else { + GLuint last_begin = exec->vtx.prim[exec->vtx.prim_count-1].begin; + GLuint last_count; + + if (exec->ctx->Driver.CurrentExecPrimitive != PRIM_OUTSIDE_BEGIN_END) { + GLint i = exec->vtx.prim_count - 1; + assert(i >= 0); + exec->vtx.prim[i].count = (exec->vtx.vert_count - + exec->vtx.prim[i].start); + } + + last_count = exec->vtx.prim[exec->vtx.prim_count-1].count; + + /* Execute the buffer and save copied vertices. + */ + if (exec->vtx.vert_count) + vbo_exec_vtx_flush( exec, GL_FALSE ); + else { + exec->vtx.prim_count = 0; + exec->vtx.copied.nr = 0; + } + + /* Emit a glBegin to start the new list. + */ + assert(exec->vtx.prim_count == 0); + + if (exec->ctx->Driver.CurrentExecPrimitive != PRIM_OUTSIDE_BEGIN_END) { + exec->vtx.prim[0].mode = exec->ctx->Driver.CurrentExecPrimitive; + exec->vtx.prim[0].start = 0; + exec->vtx.prim[0].count = 0; + exec->vtx.prim_count++; + + if (exec->vtx.copied.nr == last_count) + exec->vtx.prim[0].begin = last_begin; + } + } +} + + +/* Deal with buffer wrapping where provoked by the vertex buffer + * filling up, as opposed to upgrade_vertex(). + */ +void vbo_exec_vtx_wrap( struct vbo_exec_context *exec ) +{ + GLfloat *data = exec->vtx.copied.buffer; + GLuint i; + + /* Run pipeline on current vertices, copy wrapped vertices + * to exec->vtx.copied. + */ + vbo_exec_wrap_buffers( exec ); + + /* Copy stored stored vertices to start of new list. + */ + assert(exec->vtx.max_vert - exec->vtx.vert_count > exec->vtx.copied.nr); + + for (i = 0 ; i < exec->vtx.copied.nr ; i++) { + _mesa_memcpy( exec->vtx.buffer_ptr, data, + exec->vtx.vertex_size * sizeof(GLfloat)); + exec->vtx.buffer_ptr += exec->vtx.vertex_size; + data += exec->vtx.vertex_size; + exec->vtx.vert_count++; + } + + exec->vtx.copied.nr = 0; +} + + +/* + * Copy the active vertex's values to the ctx->Current fields. + */ +static void vbo_exec_copy_to_current( struct vbo_exec_context *exec ) +{ + GLcontext *ctx = exec->ctx; + struct vbo_context *vbo = vbo_context(ctx); + GLuint i; + + for (i = VBO_ATTRIB_POS+1 ; i < VBO_ATTRIB_MAX ; i++) { + if (exec->vtx.attrsz[i]) { + /* Note: the exec->vtx.current[i] pointers point into the + * ctx->Current.Attrib and ctx->Light.Material.Attrib arrays. + */ + GLfloat *current = (GLfloat *)vbo->currval[i].Ptr; + GLfloat tmp[4]; + + COPY_CLEAN_4V(tmp, + exec->vtx.attrsz[i], + exec->vtx.attrptr[i]); + + if (memcmp(current, tmp, sizeof(tmp)) != 0) + { + memcpy(current, tmp, sizeof(tmp)); + + /* Given that we explicitly state size here, there is no need + * for the COPY_CLEAN above, could just copy 16 bytes and be + * done. The only problem is when Mesa accesses ctx->Current + * directly. + */ + vbo->currval[i].Size = exec->vtx.attrsz[i]; + + /* This triggers rather too much recalculation of Mesa state + * that doesn't get used (eg light positions). + */ + if (i >= VBO_ATTRIB_MAT_FRONT_AMBIENT && + i <= VBO_ATTRIB_MAT_BACK_INDEXES) + ctx->NewState |= _NEW_LIGHT; + + ctx->NewState |= _NEW_CURRENT_ATTRIB; + } + } + } + + /* Colormaterial -- this kindof sucks. + */ + if (ctx->Light.ColorMaterialEnabled && + exec->vtx.attrsz[VBO_ATTRIB_COLOR0]) { + _mesa_update_color_material(ctx, + ctx->Current.Attrib[VBO_ATTRIB_COLOR0]); + } +} + + +static void vbo_exec_copy_from_current( struct vbo_exec_context *exec ) +{ + GLcontext *ctx = exec->ctx; + struct vbo_context *vbo = vbo_context(ctx); + GLint i; + + for (i = VBO_ATTRIB_POS+1 ; i < VBO_ATTRIB_MAX ; i++) { + const GLfloat *current = (GLfloat *)vbo->currval[i].Ptr; + switch (exec->vtx.attrsz[i]) { + case 4: exec->vtx.attrptr[i][3] = current[3]; + case 3: exec->vtx.attrptr[i][2] = current[2]; + case 2: exec->vtx.attrptr[i][1] = current[1]; + case 1: exec->vtx.attrptr[i][0] = current[0]; + break; + } + } +} + + +/* Flush existing data, set new attrib size, replay copied vertices. + */ +static void vbo_exec_wrap_upgrade_vertex( struct vbo_exec_context *exec, + GLuint attr, + GLuint newsz ) +{ + GLcontext *ctx = exec->ctx; + struct vbo_context *vbo = vbo_context(ctx); + GLint lastcount = exec->vtx.vert_count; + GLfloat *tmp; + GLuint oldsz; + GLuint i; + + /* Run pipeline on current vertices, copy wrapped vertices + * to exec->vtx.copied. + */ + vbo_exec_wrap_buffers( exec ); + + + /* Do a COPY_TO_CURRENT to ensure back-copying works for the case + * when the attribute already exists in the vertex and is having + * its size increased. + */ + vbo_exec_copy_to_current( exec ); + + + /* Heuristic: Attempt to isolate attributes received outside + * begin/end so that they don't bloat the vertices. + */ + if (ctx->Driver.CurrentExecPrimitive == PRIM_OUTSIDE_BEGIN_END && + exec->vtx.attrsz[attr] == 0 && + lastcount > 8 && + exec->vtx.vertex_size) { + reset_attrfv( exec ); + } + + /* Fix up sizes: + */ + oldsz = exec->vtx.attrsz[attr]; + exec->vtx.attrsz[attr] = newsz; + + exec->vtx.vertex_size += newsz - oldsz; + exec->vtx.max_vert = ((VBO_VERT_BUFFER_SIZE - exec->vtx.buffer_used) / + (exec->vtx.vertex_size * sizeof(GLfloat))); + exec->vtx.vert_count = 0; + exec->vtx.buffer_ptr = exec->vtx.buffer_map; + + + /* Recalculate all the attrptr[] values + */ + for (i = 0, tmp = exec->vtx.vertex ; i < VBO_ATTRIB_MAX ; i++) { + if (exec->vtx.attrsz[i]) { + exec->vtx.attrptr[i] = tmp; + tmp += exec->vtx.attrsz[i]; + } + else + exec->vtx.attrptr[i] = NULL; /* will not be dereferenced */ + } + + /* Copy from current to repopulate the vertex with correct values. + */ + vbo_exec_copy_from_current( exec ); + + /* Replay stored vertices to translate them + * to new format here. + * + * -- No need to replay - just copy piecewise + */ + if (exec->vtx.copied.nr) + { + GLfloat *data = exec->vtx.copied.buffer; + GLfloat *dest = exec->vtx.buffer_ptr; + GLuint j; + + assert(exec->vtx.buffer_ptr == exec->vtx.buffer_map); + + for (i = 0 ; i < exec->vtx.copied.nr ; i++) { + for (j = 0 ; j < VBO_ATTRIB_MAX ; j++) { + if (exec->vtx.attrsz[j]) { + if (j == attr) { + if (oldsz) { + COPY_CLEAN_4V( dest, oldsz, data ); + data += oldsz; + dest += newsz; + } else { + const GLfloat *current = (const GLfloat *)vbo->currval[j].Ptr; + COPY_SZ_4V( dest, newsz, current ); + dest += newsz; + } + } + else { + GLuint sz = exec->vtx.attrsz[j]; + COPY_SZ_4V( dest, sz, data ); + dest += sz; + data += sz; + } + } + } + } + + exec->vtx.buffer_ptr = dest; + exec->vtx.vert_count += exec->vtx.copied.nr; + exec->vtx.copied.nr = 0; + } +} + + +static void vbo_exec_fixup_vertex( GLcontext *ctx, + GLuint attr, GLuint sz ) +{ + struct vbo_exec_context *exec = &vbo_context(ctx)->exec; + int i; + + if (sz > exec->vtx.attrsz[attr]) { + /* New size is larger. Need to flush existing vertices and get + * an enlarged vertex format. + */ + vbo_exec_wrap_upgrade_vertex( exec, attr, sz ); + } + else if (sz < exec->vtx.active_sz[attr]) { + static const GLfloat id[4] = { 0, 0, 0, 1 }; + + /* New size is smaller - just need to fill in some + * zeros. Don't need to flush or wrap. + */ + for (i = sz ; i <= exec->vtx.attrsz[attr] ; i++) + exec->vtx.attrptr[attr][i-1] = id[i-1]; + } + + exec->vtx.active_sz[attr] = sz; + + /* Does setting NeedFlush belong here? Necessitates resetting + * vtxfmt on each flush (otherwise flags won't get reset + * afterwards). + */ + if (attr == 0) + exec->ctx->Driver.NeedFlush |= FLUSH_STORED_VERTICES; +} + + + + +/* + */ +#define ATTR( A, N, V0, V1, V2, V3 ) \ +do { \ + struct vbo_exec_context *exec = &vbo_context(ctx)->exec; \ + \ + if (exec->vtx.active_sz[A] != N) \ + vbo_exec_fixup_vertex(ctx, A, N); \ + \ + { \ + GLfloat *dest = exec->vtx.attrptr[A]; \ + if (N>0) dest[0] = V0; \ + if (N>1) dest[1] = V1; \ + if (N>2) dest[2] = V2; \ + if (N>3) dest[3] = V3; \ + } \ + \ + if ((A) == 0) { \ + GLuint i; \ + \ + for (i = 0; i < exec->vtx.vertex_size; i++) \ + exec->vtx.buffer_ptr[i] = exec->vtx.vertex[i]; \ + \ + exec->vtx.buffer_ptr += exec->vtx.vertex_size; \ + exec->ctx->Driver.NeedFlush |= FLUSH_STORED_VERTICES; \ + \ + if (++exec->vtx.vert_count >= exec->vtx.max_vert) \ + vbo_exec_vtx_wrap( exec ); \ + } \ +} while (0) + + +#define ERROR() _mesa_error( ctx, GL_INVALID_ENUM, __FUNCTION__ ) +#define TAG(x) vbo_##x + +#include "vbo_attrib_tmp.h" + + + + + +/* Eval + */ +static void GLAPIENTRY vbo_exec_EvalCoord1f( GLfloat u ) +{ + GET_CURRENT_CONTEXT( ctx ); + struct vbo_exec_context *exec = &vbo_context(ctx)->exec; + + { + GLint i; + if (exec->eval.recalculate_maps) + vbo_exec_eval_update( exec ); + + for (i = 0; i <= VBO_ATTRIB_TEX7; i++) { + if (exec->eval.map1[i].map) + if (exec->vtx.active_sz[i] != exec->eval.map1[i].sz) + vbo_exec_fixup_vertex( ctx, i, exec->eval.map1[i].sz ); + } + } + + + _mesa_memcpy( exec->vtx.copied.buffer, exec->vtx.vertex, + exec->vtx.vertex_size * sizeof(GLfloat)); + + vbo_exec_do_EvalCoord1f( exec, u ); + + _mesa_memcpy( exec->vtx.vertex, exec->vtx.copied.buffer, + exec->vtx.vertex_size * sizeof(GLfloat)); +} + +static void GLAPIENTRY vbo_exec_EvalCoord2f( GLfloat u, GLfloat v ) +{ + GET_CURRENT_CONTEXT( ctx ); + struct vbo_exec_context *exec = &vbo_context(ctx)->exec; + + { + GLint i; + if (exec->eval.recalculate_maps) + vbo_exec_eval_update( exec ); + + for (i = 0; i <= VBO_ATTRIB_TEX7; i++) { + if (exec->eval.map2[i].map) + if (exec->vtx.active_sz[i] != exec->eval.map2[i].sz) + vbo_exec_fixup_vertex( ctx, i, exec->eval.map2[i].sz ); + } + + if (ctx->Eval.AutoNormal) + if (exec->vtx.active_sz[VBO_ATTRIB_NORMAL] != 3) + vbo_exec_fixup_vertex( ctx, VBO_ATTRIB_NORMAL, 3 ); + } + + _mesa_memcpy( exec->vtx.copied.buffer, exec->vtx.vertex, + exec->vtx.vertex_size * sizeof(GLfloat)); + + vbo_exec_do_EvalCoord2f( exec, u, v ); + + _mesa_memcpy( exec->vtx.vertex, exec->vtx.copied.buffer, + exec->vtx.vertex_size * sizeof(GLfloat)); +} + +static void GLAPIENTRY vbo_exec_EvalCoord1fv( const GLfloat *u ) +{ + vbo_exec_EvalCoord1f( u[0] ); +} + +static void GLAPIENTRY vbo_exec_EvalCoord2fv( const GLfloat *u ) +{ + vbo_exec_EvalCoord2f( u[0], u[1] ); +} + +static void GLAPIENTRY vbo_exec_EvalPoint1( GLint i ) +{ + GET_CURRENT_CONTEXT( ctx ); + GLfloat du = ((ctx->Eval.MapGrid1u2 - ctx->Eval.MapGrid1u1) / + (GLfloat) ctx->Eval.MapGrid1un); + GLfloat u = i * du + ctx->Eval.MapGrid1u1; + + vbo_exec_EvalCoord1f( u ); +} + + +static void GLAPIENTRY vbo_exec_EvalPoint2( GLint i, GLint j ) +{ + GET_CURRENT_CONTEXT( ctx ); + GLfloat du = ((ctx->Eval.MapGrid2u2 - ctx->Eval.MapGrid2u1) / + (GLfloat) ctx->Eval.MapGrid2un); + GLfloat dv = ((ctx->Eval.MapGrid2v2 - ctx->Eval.MapGrid2v1) / + (GLfloat) ctx->Eval.MapGrid2vn); + GLfloat u = i * du + ctx->Eval.MapGrid2u1; + GLfloat v = j * dv + ctx->Eval.MapGrid2v1; + + vbo_exec_EvalCoord2f( u, v ); +} + + +/* Build a list of primitives on the fly. Keep + * ctx->Driver.CurrentExecPrimitive uptodate as well. + */ +static void GLAPIENTRY vbo_exec_Begin( GLenum mode ) +{ + GET_CURRENT_CONTEXT( ctx ); + + if (ctx->Driver.CurrentExecPrimitive == PRIM_OUTSIDE_BEGIN_END) { + struct vbo_exec_context *exec = &vbo_context(ctx)->exec; + int i; + + if (ctx->NewState) { + _mesa_update_state( ctx ); + + CALL_Begin(ctx->Exec, (mode)); + return; + } + + if (!_mesa_valid_to_render(ctx, "glBegin")) { + return; + } + + /* Heuristic: attempt to isolate attributes occuring outside + * begin/end pairs. + */ + if (exec->vtx.vertex_size && !exec->vtx.attrsz[0]) + vbo_exec_FlushVertices_internal( ctx, GL_FALSE ); + + i = exec->vtx.prim_count++; + exec->vtx.prim[i].mode = mode; + exec->vtx.prim[i].begin = 1; + exec->vtx.prim[i].end = 0; + exec->vtx.prim[i].indexed = 0; + exec->vtx.prim[i].weak = 0; + exec->vtx.prim[i].pad = 0; + exec->vtx.prim[i].start = exec->vtx.vert_count; + exec->vtx.prim[i].count = 0; + + ctx->Driver.CurrentExecPrimitive = mode; + } + else + _mesa_error( ctx, GL_INVALID_OPERATION, "glBegin" ); + +} + +static void GLAPIENTRY vbo_exec_End( void ) +{ + GET_CURRENT_CONTEXT( ctx ); + + if (ctx->Driver.CurrentExecPrimitive != PRIM_OUTSIDE_BEGIN_END) { + struct vbo_exec_context *exec = &vbo_context(ctx)->exec; + int idx = exec->vtx.vert_count; + int i = exec->vtx.prim_count - 1; + + exec->vtx.prim[i].end = 1; + exec->vtx.prim[i].count = idx - exec->vtx.prim[i].start; + + ctx->Driver.CurrentExecPrimitive = PRIM_OUTSIDE_BEGIN_END; + + if (exec->vtx.prim_count == VBO_MAX_PRIM) + vbo_exec_vtx_flush( exec, GL_FALSE ); + } + else + _mesa_error( ctx, GL_INVALID_OPERATION, "glEnd" ); +} + + +static void vbo_exec_vtxfmt_init( struct vbo_exec_context *exec ) +{ + GLvertexformat *vfmt = &exec->vtxfmt; + + vfmt->ArrayElement = _ae_loopback_array_elt; /* generic helper */ + vfmt->Begin = vbo_exec_Begin; +#if FEATURE_dlist + vfmt->CallList = _mesa_CallList; + vfmt->CallLists = _mesa_CallLists; +#endif + vfmt->End = vbo_exec_End; + vfmt->EvalCoord1f = vbo_exec_EvalCoord1f; + vfmt->EvalCoord1fv = vbo_exec_EvalCoord1fv; + vfmt->EvalCoord2f = vbo_exec_EvalCoord2f; + vfmt->EvalCoord2fv = vbo_exec_EvalCoord2fv; + vfmt->EvalPoint1 = vbo_exec_EvalPoint1; + vfmt->EvalPoint2 = vbo_exec_EvalPoint2; + + vfmt->Rectf = _mesa_noop_Rectf; + vfmt->EvalMesh1 = _mesa_noop_EvalMesh1; + vfmt->EvalMesh2 = _mesa_noop_EvalMesh2; + + + /* from attrib_tmp.h: + */ + vfmt->Color3f = vbo_Color3f; + vfmt->Color3fv = vbo_Color3fv; + vfmt->Color4f = vbo_Color4f; + vfmt->Color4fv = vbo_Color4fv; + vfmt->FogCoordfEXT = vbo_FogCoordfEXT; + vfmt->FogCoordfvEXT = vbo_FogCoordfvEXT; + vfmt->MultiTexCoord1fARB = vbo_MultiTexCoord1f; + vfmt->MultiTexCoord1fvARB = vbo_MultiTexCoord1fv; + vfmt->MultiTexCoord2fARB = vbo_MultiTexCoord2f; + vfmt->MultiTexCoord2fvARB = vbo_MultiTexCoord2fv; + vfmt->MultiTexCoord3fARB = vbo_MultiTexCoord3f; + vfmt->MultiTexCoord3fvARB = vbo_MultiTexCoord3fv; + vfmt->MultiTexCoord4fARB = vbo_MultiTexCoord4f; + vfmt->MultiTexCoord4fvARB = vbo_MultiTexCoord4fv; + vfmt->Normal3f = vbo_Normal3f; + vfmt->Normal3fv = vbo_Normal3fv; + vfmt->SecondaryColor3fEXT = vbo_SecondaryColor3fEXT; + vfmt->SecondaryColor3fvEXT = vbo_SecondaryColor3fvEXT; + vfmt->TexCoord1f = vbo_TexCoord1f; + vfmt->TexCoord1fv = vbo_TexCoord1fv; + vfmt->TexCoord2f = vbo_TexCoord2f; + vfmt->TexCoord2fv = vbo_TexCoord2fv; + vfmt->TexCoord3f = vbo_TexCoord3f; + vfmt->TexCoord3fv = vbo_TexCoord3fv; + vfmt->TexCoord4f = vbo_TexCoord4f; + vfmt->TexCoord4fv = vbo_TexCoord4fv; + vfmt->Vertex2f = vbo_Vertex2f; + vfmt->Vertex2fv = vbo_Vertex2fv; + vfmt->Vertex3f = vbo_Vertex3f; + vfmt->Vertex3fv = vbo_Vertex3fv; + vfmt->Vertex4f = vbo_Vertex4f; + vfmt->Vertex4fv = vbo_Vertex4fv; + + vfmt->VertexAttrib1fARB = vbo_VertexAttrib1fARB; + vfmt->VertexAttrib1fvARB = vbo_VertexAttrib1fvARB; + vfmt->VertexAttrib2fARB = vbo_VertexAttrib2fARB; + vfmt->VertexAttrib2fvARB = vbo_VertexAttrib2fvARB; + vfmt->VertexAttrib3fARB = vbo_VertexAttrib3fARB; + vfmt->VertexAttrib3fvARB = vbo_VertexAttrib3fvARB; + vfmt->VertexAttrib4fARB = vbo_VertexAttrib4fARB; + vfmt->VertexAttrib4fvARB = vbo_VertexAttrib4fvARB; + + vfmt->VertexAttrib1fNV = vbo_VertexAttrib1fNV; + vfmt->VertexAttrib1fvNV = vbo_VertexAttrib1fvNV; + vfmt->VertexAttrib2fNV = vbo_VertexAttrib2fNV; + vfmt->VertexAttrib2fvNV = vbo_VertexAttrib2fvNV; + vfmt->VertexAttrib3fNV = vbo_VertexAttrib3fNV; + vfmt->VertexAttrib3fvNV = vbo_VertexAttrib3fvNV; + vfmt->VertexAttrib4fNV = vbo_VertexAttrib4fNV; + vfmt->VertexAttrib4fvNV = vbo_VertexAttrib4fvNV; + + vfmt->Materialfv = vbo_Materialfv; + + vfmt->EdgeFlag = vbo_EdgeFlag; + vfmt->Indexf = vbo_Indexf; + vfmt->Indexfv = vbo_Indexfv; + +} + + +/** + * Tell the VBO module to use a real OpenGL vertex buffer object to + * store accumulated immediate-mode vertex data. + * This replaces the malloced buffer which was created in + * vb_exec_vtx_init() below. + */ +void vbo_use_buffer_objects(GLcontext *ctx) +{ + struct vbo_exec_context *exec = &vbo_context(ctx)->exec; + /* Any buffer name but 0 can be used here since this bufferobj won't + * go into the bufferobj hashtable. + */ + GLuint bufName = IMM_BUFFER_NAME; + GLenum target = GL_ARRAY_BUFFER_ARB; + GLenum usage = GL_STREAM_DRAW_ARB; + GLsizei size = VBO_VERT_BUFFER_SIZE; + + /* Make sure this func is only used once */ + assert(exec->vtx.bufferobj == ctx->Shared->NullBufferObj); + if (exec->vtx.buffer_map) { + _mesa_align_free(exec->vtx.buffer_map); + exec->vtx.buffer_map = NULL; + exec->vtx.buffer_ptr = NULL; + } + + /* Allocate a real buffer object now */ + exec->vtx.bufferobj = ctx->Driver.NewBufferObject(ctx, bufName, target); + ctx->Driver.BufferData(ctx, target, size, NULL, usage, exec->vtx.bufferobj); +} + + + +void vbo_exec_vtx_init( struct vbo_exec_context *exec ) +{ + GLcontext *ctx = exec->ctx; + struct vbo_context *vbo = vbo_context(ctx); + GLuint i; + + /* Allocate a buffer object. Will just reuse this object + * continuously, unless vbo_use_buffer_objects() is called to enable + * use of real VBOs. + */ + _mesa_reference_buffer_object(ctx, + &exec->vtx.bufferobj, + ctx->Shared->NullBufferObj); + + ASSERT(!exec->vtx.buffer_map); + exec->vtx.buffer_map = (GLfloat *)ALIGN_MALLOC(VBO_VERT_BUFFER_SIZE, 64); + exec->vtx.buffer_ptr = exec->vtx.buffer_map; + + vbo_exec_vtxfmt_init( exec ); + + /* Hook our functions into the dispatch table. + */ + _mesa_install_exec_vtxfmt( exec->ctx, &exec->vtxfmt ); + + for (i = 0 ; i < VBO_ATTRIB_MAX ; i++) { + exec->vtx.attrsz[i] = 0; + exec->vtx.active_sz[i] = 0; + exec->vtx.inputs[i] = &exec->vtx.arrays[i]; + } + + { + struct gl_client_array *arrays = exec->vtx.arrays; + memcpy(arrays, vbo->legacy_currval, 16 * sizeof(arrays[0])); + memcpy(arrays + 16, vbo->generic_currval, 16 * sizeof(arrays[0])); + } + + exec->vtx.vertex_size = 0; +} + + +void vbo_exec_vtx_destroy( struct vbo_exec_context *exec ) +{ + /* using a real VBO for vertex data */ + GLcontext *ctx = exec->ctx; + unsigned i; + + /* True VBOs should already be unmapped + */ + if (exec->vtx.buffer_map) { + ASSERT(exec->vtx.bufferobj->Name == 0 || + exec->vtx.bufferobj->Name == IMM_BUFFER_NAME); + if (exec->vtx.bufferobj->Name == 0) { + ALIGN_FREE(exec->vtx.buffer_map); + exec->vtx.buffer_map = NULL; + exec->vtx.buffer_ptr = NULL; + } + } + + /* Drop any outstanding reference to the vertex buffer + */ + for (i = 0; i < Elements(exec->vtx.arrays); i++) { + _mesa_reference_buffer_object(ctx, + &exec->vtx.arrays[i].BufferObj, + NULL); + } + + /* Free the vertex buffer: + */ + _mesa_reference_buffer_object(ctx, &exec->vtx.bufferobj, NULL); +} + +void vbo_exec_BeginVertices( GLcontext *ctx ) +{ + struct vbo_exec_context *exec = &vbo_context(ctx)->exec; + if (0) _mesa_printf("%s\n", __FUNCTION__); + vbo_exec_vtx_map( exec ); + + assert((exec->ctx->Driver.NeedFlush & FLUSH_UPDATE_CURRENT) == 0); + exec->ctx->Driver.NeedFlush |= FLUSH_UPDATE_CURRENT; +} + +void vbo_exec_FlushVertices_internal( GLcontext *ctx, GLboolean unmap ) +{ + struct vbo_exec_context *exec = &vbo_context(ctx)->exec; + + if (exec->vtx.vert_count || unmap) { + vbo_exec_vtx_flush( exec, unmap ); + } + + if (exec->vtx.vertex_size) { + vbo_exec_copy_to_current( exec ); + reset_attrfv( exec ); + } +} + + + +void vbo_exec_FlushVertices( GLcontext *ctx, GLuint flags ) +{ + struct vbo_exec_context *exec = &vbo_context(ctx)->exec; + + if (0) _mesa_printf("%s\n", __FUNCTION__); + + if (exec->ctx->Driver.CurrentExecPrimitive != PRIM_OUTSIDE_BEGIN_END) { + if (0) _mesa_printf("%s - inside begin/end\n", __FUNCTION__); + return; + } + + vbo_exec_FlushVertices_internal( ctx, GL_TRUE ); + + /* Need to do this to ensure BeginVertices gets called again: + */ + if (exec->ctx->Driver.NeedFlush & FLUSH_UPDATE_CURRENT) { + _mesa_restore_exec_vtxfmt( ctx ); + exec->ctx->Driver.NeedFlush &= ~FLUSH_UPDATE_CURRENT; + } + + exec->ctx->Driver.NeedFlush &= ~flags; +} + + +static void reset_attrfv( struct vbo_exec_context *exec ) +{ + GLuint i; + + for (i = 0 ; i < VBO_ATTRIB_MAX ; i++) { + exec->vtx.attrsz[i] = 0; + exec->vtx.active_sz[i] = 0; + } + + exec->vtx.vertex_size = 0; +} + + +void GLAPIENTRY +_vbo_Color4f(GLfloat r, GLfloat g, GLfloat b, GLfloat a) +{ + vbo_Color4f(r, g, b, a); +} + + +void GLAPIENTRY +_vbo_Normal3f(GLfloat x, GLfloat y, GLfloat z) +{ + vbo_Normal3f(x, y, z); +} + + +void GLAPIENTRY +_vbo_MultiTexCoord4f(GLenum target, GLfloat s, GLfloat t, GLfloat r, GLfloat q) +{ + vbo_MultiTexCoord4f(target, s, t, r, q); +} + +void GLAPIENTRY +_vbo_Materialfv(GLenum face, GLenum pname, const GLfloat *params) +{ + vbo_Materialfv(face, pname, params); +} + + +void GLAPIENTRY +_vbo_VertexAttrib4f(GLuint index, GLfloat x, GLfloat y, GLfloat z, GLfloat w) +{ + vbo_VertexAttrib4fARB(index, x, y, z, w); +} |