diff options
Diffstat (limited to 'mesalib/src/mesa/state_tracker/st_atom_array.c')
| -rw-r--r-- | mesalib/src/mesa/state_tracker/st_atom_array.c | 588 |
1 files changed, 588 insertions, 0 deletions
diff --git a/mesalib/src/mesa/state_tracker/st_atom_array.c b/mesalib/src/mesa/state_tracker/st_atom_array.c new file mode 100644 index 000000000..d60b0d7a9 --- /dev/null +++ b/mesalib/src/mesa/state_tracker/st_atom_array.c @@ -0,0 +1,588 @@ +/************************************************************************** + * + * Copyright 2007 Tungsten Graphics, Inc., Cedar Park, Texas. + * Copyright 2012 Marek Olšák <maraeo@gmail.com> + * 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, 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 AUTHORS AND/OR ITS 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. + * + **************************************************************************/ + +/* + * This converts the VBO's vertex attribute/array information into + * Gallium vertex state and binds it. + * + * Authors: + * Keith Whitwell <keith@tungstengraphics.com> + * Marek Olšák <maraeo@gmail.com> + */ + +#include "st_context.h" +#include "st_atom.h" +#include "st_cb_bufferobjects.h" +#include "st_draw.h" +#include "st_program.h" + +#include "cso_cache/cso_context.h" +#include "util/u_math.h" + +#include "main/bufferobj.h" +#include "main/image.h" + + +static GLuint double_types[4] = { + PIPE_FORMAT_R64_FLOAT, + PIPE_FORMAT_R64G64_FLOAT, + PIPE_FORMAT_R64G64B64_FLOAT, + PIPE_FORMAT_R64G64B64A64_FLOAT +}; + +static GLuint float_types[4] = { + PIPE_FORMAT_R32_FLOAT, + PIPE_FORMAT_R32G32_FLOAT, + PIPE_FORMAT_R32G32B32_FLOAT, + PIPE_FORMAT_R32G32B32A32_FLOAT +}; + +static GLuint half_float_types[4] = { + PIPE_FORMAT_R16_FLOAT, + PIPE_FORMAT_R16G16_FLOAT, + PIPE_FORMAT_R16G16B16_FLOAT, + PIPE_FORMAT_R16G16B16A16_FLOAT +}; + +static GLuint uint_types_norm[4] = { + PIPE_FORMAT_R32_UNORM, + PIPE_FORMAT_R32G32_UNORM, + PIPE_FORMAT_R32G32B32_UNORM, + PIPE_FORMAT_R32G32B32A32_UNORM +}; + +static GLuint uint_types_scale[4] = { + PIPE_FORMAT_R32_USCALED, + PIPE_FORMAT_R32G32_USCALED, + PIPE_FORMAT_R32G32B32_USCALED, + PIPE_FORMAT_R32G32B32A32_USCALED +}; + +static GLuint uint_types_int[4] = { + PIPE_FORMAT_R32_UINT, + PIPE_FORMAT_R32G32_UINT, + PIPE_FORMAT_R32G32B32_UINT, + PIPE_FORMAT_R32G32B32A32_UINT +}; + +static GLuint int_types_norm[4] = { + PIPE_FORMAT_R32_SNORM, + PIPE_FORMAT_R32G32_SNORM, + PIPE_FORMAT_R32G32B32_SNORM, + PIPE_FORMAT_R32G32B32A32_SNORM +}; + +static GLuint int_types_scale[4] = { + PIPE_FORMAT_R32_SSCALED, + PIPE_FORMAT_R32G32_SSCALED, + PIPE_FORMAT_R32G32B32_SSCALED, + PIPE_FORMAT_R32G32B32A32_SSCALED +}; + +static GLuint int_types_int[4] = { + PIPE_FORMAT_R32_SINT, + PIPE_FORMAT_R32G32_SINT, + PIPE_FORMAT_R32G32B32_SINT, + PIPE_FORMAT_R32G32B32A32_SINT +}; + +static GLuint ushort_types_norm[4] = { + PIPE_FORMAT_R16_UNORM, + PIPE_FORMAT_R16G16_UNORM, + PIPE_FORMAT_R16G16B16_UNORM, + PIPE_FORMAT_R16G16B16A16_UNORM +}; + +static GLuint ushort_types_scale[4] = { + PIPE_FORMAT_R16_USCALED, + PIPE_FORMAT_R16G16_USCALED, + PIPE_FORMAT_R16G16B16_USCALED, + PIPE_FORMAT_R16G16B16A16_USCALED +}; + +static GLuint ushort_types_int[4] = { + PIPE_FORMAT_R16_UINT, + PIPE_FORMAT_R16G16_UINT, + PIPE_FORMAT_R16G16B16_UINT, + PIPE_FORMAT_R16G16B16A16_UINT +}; + +static GLuint short_types_norm[4] = { + PIPE_FORMAT_R16_SNORM, + PIPE_FORMAT_R16G16_SNORM, + PIPE_FORMAT_R16G16B16_SNORM, + PIPE_FORMAT_R16G16B16A16_SNORM +}; + +static GLuint short_types_scale[4] = { + PIPE_FORMAT_R16_SSCALED, + PIPE_FORMAT_R16G16_SSCALED, + PIPE_FORMAT_R16G16B16_SSCALED, + PIPE_FORMAT_R16G16B16A16_SSCALED +}; + +static GLuint short_types_int[4] = { + PIPE_FORMAT_R16_SINT, + PIPE_FORMAT_R16G16_SINT, + PIPE_FORMAT_R16G16B16_SINT, + PIPE_FORMAT_R16G16B16A16_SINT +}; + +static GLuint ubyte_types_norm[4] = { + PIPE_FORMAT_R8_UNORM, + PIPE_FORMAT_R8G8_UNORM, + PIPE_FORMAT_R8G8B8_UNORM, + PIPE_FORMAT_R8G8B8A8_UNORM +}; + +static GLuint ubyte_types_scale[4] = { + PIPE_FORMAT_R8_USCALED, + PIPE_FORMAT_R8G8_USCALED, + PIPE_FORMAT_R8G8B8_USCALED, + PIPE_FORMAT_R8G8B8A8_USCALED +}; + +static GLuint ubyte_types_int[4] = { + PIPE_FORMAT_R8_UINT, + PIPE_FORMAT_R8G8_UINT, + PIPE_FORMAT_R8G8B8_UINT, + PIPE_FORMAT_R8G8B8A8_UINT +}; + +static GLuint byte_types_norm[4] = { + PIPE_FORMAT_R8_SNORM, + PIPE_FORMAT_R8G8_SNORM, + PIPE_FORMAT_R8G8B8_SNORM, + PIPE_FORMAT_R8G8B8A8_SNORM +}; + +static GLuint byte_types_scale[4] = { + PIPE_FORMAT_R8_SSCALED, + PIPE_FORMAT_R8G8_SSCALED, + PIPE_FORMAT_R8G8B8_SSCALED, + PIPE_FORMAT_R8G8B8A8_SSCALED +}; + +static GLuint byte_types_int[4] = { + PIPE_FORMAT_R8_SINT, + PIPE_FORMAT_R8G8_SINT, + PIPE_FORMAT_R8G8B8_SINT, + PIPE_FORMAT_R8G8B8A8_SINT +}; + +static GLuint fixed_types[4] = { + PIPE_FORMAT_R32_FIXED, + PIPE_FORMAT_R32G32_FIXED, + PIPE_FORMAT_R32G32B32_FIXED, + PIPE_FORMAT_R32G32B32A32_FIXED +}; + + +/** + * Return a PIPE_FORMAT_x for the given GL datatype and size. + */ +enum pipe_format +st_pipe_vertex_format(GLenum type, GLuint size, GLenum format, + GLboolean normalized, GLboolean integer) +{ + assert((type >= GL_BYTE && type <= GL_DOUBLE) || + type == GL_FIXED || type == GL_HALF_FLOAT || + type == GL_INT_2_10_10_10_REV || + type == GL_UNSIGNED_INT_2_10_10_10_REV); + assert(size >= 1); + assert(size <= 4); + assert(format == GL_RGBA || format == GL_BGRA); + + if (type == GL_INT_2_10_10_10_REV || + type == GL_UNSIGNED_INT_2_10_10_10_REV) { + assert(size == 4); + assert(!integer); + + if (format == GL_BGRA) { + if (type == GL_INT_2_10_10_10_REV) { + if (normalized) + return PIPE_FORMAT_B10G10R10A2_SNORM; + else + return PIPE_FORMAT_B10G10R10A2_SSCALED; + } else { + if (normalized) + return PIPE_FORMAT_B10G10R10A2_UNORM; + else + return PIPE_FORMAT_B10G10R10A2_USCALED; + } + } else { + if (type == GL_INT_2_10_10_10_REV) { + if (normalized) + return PIPE_FORMAT_R10G10B10A2_SNORM; + else + return PIPE_FORMAT_R10G10B10A2_SSCALED; + } else { + if (normalized) + return PIPE_FORMAT_R10G10B10A2_UNORM; + else + return PIPE_FORMAT_R10G10B10A2_USCALED; + } + } + } + + if (format == GL_BGRA) { + /* this is an odd-ball case */ + assert(type == GL_UNSIGNED_BYTE); + assert(normalized); + return PIPE_FORMAT_B8G8R8A8_UNORM; + } + + if (integer) { + switch (type) { + case GL_INT: return int_types_int[size-1]; + case GL_SHORT: return short_types_int[size-1]; + case GL_BYTE: return byte_types_int[size-1]; + case GL_UNSIGNED_INT: return uint_types_int[size-1]; + case GL_UNSIGNED_SHORT: return ushort_types_int[size-1]; + case GL_UNSIGNED_BYTE: return ubyte_types_int[size-1]; + default: assert(0); return 0; + } + } + else if (normalized) { + switch (type) { + case GL_DOUBLE: return double_types[size-1]; + case GL_FLOAT: return float_types[size-1]; + case GL_HALF_FLOAT: return half_float_types[size-1]; + case GL_INT: return int_types_norm[size-1]; + case GL_SHORT: return short_types_norm[size-1]; + case GL_BYTE: return byte_types_norm[size-1]; + case GL_UNSIGNED_INT: return uint_types_norm[size-1]; + case GL_UNSIGNED_SHORT: return ushort_types_norm[size-1]; + case GL_UNSIGNED_BYTE: return ubyte_types_norm[size-1]; + case GL_FIXED: return fixed_types[size-1]; + default: assert(0); return 0; + } + } + else { + switch (type) { + case GL_DOUBLE: return double_types[size-1]; + case GL_FLOAT: return float_types[size-1]; + case GL_HALF_FLOAT: return half_float_types[size-1]; + case GL_INT: return int_types_scale[size-1]; + case GL_SHORT: return short_types_scale[size-1]; + case GL_BYTE: return byte_types_scale[size-1]; + case GL_UNSIGNED_INT: return uint_types_scale[size-1]; + case GL_UNSIGNED_SHORT: return ushort_types_scale[size-1]; + case GL_UNSIGNED_BYTE: return ubyte_types_scale[size-1]; + case GL_FIXED: return fixed_types[size-1]; + default: assert(0); return 0; + } + } + return PIPE_FORMAT_NONE; /* silence compiler warning */ +} + +/** + * Examine the active arrays to determine if we have interleaved + * vertex arrays all living in one VBO, or all living in user space. + */ +static GLboolean +is_interleaved_arrays(const struct st_vertex_program *vp, + const struct st_vp_variant *vpv, + const struct gl_client_array **arrays) +{ + GLuint attr; + const struct gl_buffer_object *firstBufObj = NULL; + GLint firstStride = -1; + const GLubyte *firstPtr = NULL; + GLboolean userSpaceBuffer = GL_FALSE; + + for (attr = 0; attr < vpv->num_inputs; attr++) { + const GLuint mesaAttr = vp->index_to_input[attr]; + const struct gl_client_array *array = arrays[mesaAttr]; + const struct gl_buffer_object *bufObj = array->BufferObj; + const GLsizei stride = array->StrideB; /* in bytes */ + + if (attr == 0) { + /* save info about the first array */ + firstStride = stride; + firstPtr = array->Ptr; + firstBufObj = bufObj; + userSpaceBuffer = !bufObj || !bufObj->Name; + } + else { + /* check if other arrays interleave with the first, in same buffer */ + if (stride != firstStride) + return GL_FALSE; /* strides don't match */ + + if (bufObj != firstBufObj) + return GL_FALSE; /* arrays in different VBOs */ + + if (abs(array->Ptr - firstPtr) > firstStride) + return GL_FALSE; /* arrays start too far apart */ + + if ((!_mesa_is_bufferobj(bufObj)) != userSpaceBuffer) + return GL_FALSE; /* mix of VBO and user-space arrays */ + } + } + + return GL_TRUE; +} + +/** + * Set up for drawing interleaved arrays that all live in one VBO + * or all live in user space. + * \param vbuffer returns vertex buffer info + * \param velements returns vertex element info + */ +static boolean +setup_interleaved_attribs(const struct st_vertex_program *vp, + const struct st_vp_variant *vpv, + const struct gl_client_array **arrays, + struct pipe_vertex_buffer *vbuffer, + struct pipe_vertex_element velements[]) +{ + GLuint attr; + const GLubyte *low_addr = NULL; + GLboolean usingVBO; /* all arrays in a VBO? */ + struct gl_buffer_object *bufobj; + GLsizei stride; + + /* Find the lowest address of the arrays we're drawing, + * Init bufobj and stride. + */ + if (vpv->num_inputs) { + const GLuint mesaAttr0 = vp->index_to_input[0]; + const struct gl_client_array *array = arrays[mesaAttr0]; + + /* Since we're doing interleaved arrays, we know there'll be at most + * one buffer object and the stride will be the same for all arrays. + * Grab them now. + */ + bufobj = array->BufferObj; + stride = array->StrideB; + + low_addr = arrays[vp->index_to_input[0]]->Ptr; + + for (attr = 1; attr < vpv->num_inputs; attr++) { + const GLubyte *start = arrays[vp->index_to_input[attr]]->Ptr; + low_addr = MIN2(low_addr, start); + } + } + else { + /* not sure we'll ever have zero inputs, but play it safe */ + bufobj = NULL; + stride = 0; + low_addr = 0; + } + + /* are the arrays in user space? */ + usingVBO = _mesa_is_bufferobj(bufobj); + + for (attr = 0; attr < vpv->num_inputs; attr++) { + const GLuint mesaAttr = vp->index_to_input[attr]; + const struct gl_client_array *array = arrays[mesaAttr]; + unsigned src_offset = (unsigned) (array->Ptr - low_addr); + GLuint element_size = array->_ElementSize; + + assert(element_size == array->Size * _mesa_sizeof_type(array->Type)); + + velements[attr].src_offset = src_offset; + velements[attr].instance_divisor = array->InstanceDivisor; + velements[attr].vertex_buffer_index = 0; + velements[attr].src_format = st_pipe_vertex_format(array->Type, + array->Size, + array->Format, + array->Normalized, + array->Integer); + assert(velements[attr].src_format); + } + + /* + * Return the vbuffer info and setup user-space attrib info, if needed. + */ + if (vpv->num_inputs == 0) { + /* just defensive coding here */ + vbuffer->buffer = NULL; + vbuffer->user_buffer = NULL; + vbuffer->buffer_offset = 0; + vbuffer->stride = 0; + } + else if (usingVBO) { + /* all interleaved arrays in a VBO */ + struct st_buffer_object *stobj = st_buffer_object(bufobj); + + if (!stobj || !stobj->buffer) { + return FALSE; /* out-of-memory error probably */ + } + + vbuffer->buffer = stobj->buffer; + vbuffer->user_buffer = NULL; + vbuffer->buffer_offset = pointer_to_offset(low_addr); + vbuffer->stride = stride; + } + else { + /* all interleaved arrays in user memory */ + vbuffer->buffer = NULL; + vbuffer->user_buffer = low_addr; + vbuffer->buffer_offset = 0; + vbuffer->stride = stride; + } + return TRUE; +} + +/** + * Set up a separate pipe_vertex_buffer and pipe_vertex_element for each + * vertex attribute. + * \param vbuffer returns vertex buffer info + * \param velements returns vertex element info + */ +static boolean +setup_non_interleaved_attribs(struct st_context *st, + const struct st_vertex_program *vp, + const struct st_vp_variant *vpv, + const struct gl_client_array **arrays, + struct pipe_vertex_buffer vbuffer[], + struct pipe_vertex_element velements[]) +{ + struct gl_context *ctx = st->ctx; + GLuint attr; + + for (attr = 0; attr < vpv->num_inputs; attr++) { + const GLuint mesaAttr = vp->index_to_input[attr]; + const struct gl_client_array *array = arrays[mesaAttr]; + struct gl_buffer_object *bufobj = array->BufferObj; + GLsizei stride = array->StrideB; + + assert(array->_ElementSize == array->Size * _mesa_sizeof_type(array->Type)); + + if (_mesa_is_bufferobj(bufobj)) { + /* Attribute data is in a VBO. + * Recall that for VBOs, the gl_client_array->Ptr field is + * really an offset from the start of the VBO, not a pointer. + */ + struct st_buffer_object *stobj = st_buffer_object(bufobj); + + if (!stobj || !stobj->buffer) { + return FALSE; /* out-of-memory error probably */ + } + + vbuffer[attr].buffer = stobj->buffer; + vbuffer[attr].user_buffer = NULL; + vbuffer[attr].buffer_offset = pointer_to_offset(array->Ptr); + } + else { + /* wrap user data */ + void *ptr; + + if (array->Ptr) { + ptr = (void *) array->Ptr; + } + else { + /* no array, use ctx->Current.Attrib[] value */ + ptr = (void *) ctx->Current.Attrib[mesaAttr]; + stride = 0; + } + + assert(ptr); + + vbuffer[attr].buffer = NULL; + vbuffer[attr].user_buffer = ptr; + vbuffer[attr].buffer_offset = 0; + } + + /* common-case setup */ + vbuffer[attr].stride = stride; /* in bytes */ + + velements[attr].src_offset = 0; + velements[attr].instance_divisor = array->InstanceDivisor; + velements[attr].vertex_buffer_index = attr; + velements[attr].src_format = st_pipe_vertex_format(array->Type, + array->Size, + array->Format, + array->Normalized, + array->Integer); + assert(velements[attr].src_format); + } + return TRUE; +} + +static void update_array(struct st_context *st) +{ + struct gl_context *ctx = st->ctx; + const struct gl_client_array **arrays = ctx->Array._DrawArrays; + const struct st_vertex_program *vp; + const struct st_vp_variant *vpv; + struct pipe_vertex_buffer vbuffer[PIPE_MAX_SHADER_INPUTS]; + struct pipe_vertex_element velements[PIPE_MAX_ATTRIBS]; + unsigned num_vbuffers, num_velements; + + st->vertex_array_out_of_memory = FALSE; + + /* No drawing has been done yet, so do nothing. */ + if (!arrays) + return; + + /* vertex program validation must be done before this */ + vp = st->vp; + vpv = st->vp_variant; + + memset(velements, 0, sizeof(struct pipe_vertex_element) * vpv->num_inputs); + + /* + * Setup the vbuffer[] and velements[] arrays. + */ + if (is_interleaved_arrays(vp, vpv, arrays)) { + if (!setup_interleaved_attribs(vp, vpv, arrays, vbuffer, velements)) { + st->vertex_array_out_of_memory = TRUE; + return; + } + + num_vbuffers = 1; + num_velements = vpv->num_inputs; + if (num_velements == 0) + num_vbuffers = 0; + } + else { + if (!setup_non_interleaved_attribs(st, vp, vpv, arrays, vbuffer, + velements)) { + st->vertex_array_out_of_memory = TRUE; + return; + } + + num_vbuffers = vpv->num_inputs; + num_velements = vpv->num_inputs; + } + + cso_set_vertex_buffers(st->cso_context, num_vbuffers, vbuffer); + cso_set_vertex_elements(st->cso_context, num_velements, velements); +} + + +const struct st_tracked_state st_update_array = { + "st_update_array", /* name */ + { /* dirty */ + (_NEW_PROGRAM | _NEW_BUFFER_OBJECT), /* mesa */ + ST_NEW_VERTEX_ARRAYS | ST_NEW_VERTEX_PROGRAM, /* st */ + }, + update_array /* update */ +}; 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