| /************************************************************************** |
| * |
| * Copyright 2003 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 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 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. |
| * |
| **************************************************************************/ |
| |
| |
| #include "main/glheader.h" |
| #include "main/bufferobj.h" |
| #include "main/context.h" |
| #include "main/enums.h" |
| |
| #include "brw_draw.h" |
| #include "brw_defines.h" |
| #include "brw_context.h" |
| #include "brw_state.h" |
| |
| #include "intel_batchbuffer.h" |
| #include "intel_buffer_objects.h" |
| |
| static GLuint double_types[5] = { |
| 0, |
| BRW_SURFACEFORMAT_R64_FLOAT, |
| BRW_SURFACEFORMAT_R64G64_FLOAT, |
| BRW_SURFACEFORMAT_R64G64B64_FLOAT, |
| BRW_SURFACEFORMAT_R64G64B64A64_FLOAT |
| }; |
| |
| static GLuint float_types[5] = { |
| 0, |
| BRW_SURFACEFORMAT_R32_FLOAT, |
| BRW_SURFACEFORMAT_R32G32_FLOAT, |
| BRW_SURFACEFORMAT_R32G32B32_FLOAT, |
| BRW_SURFACEFORMAT_R32G32B32A32_FLOAT |
| }; |
| |
| static GLuint uint_types_norm[5] = { |
| 0, |
| BRW_SURFACEFORMAT_R32_UNORM, |
| BRW_SURFACEFORMAT_R32G32_UNORM, |
| BRW_SURFACEFORMAT_R32G32B32_UNORM, |
| BRW_SURFACEFORMAT_R32G32B32A32_UNORM |
| }; |
| |
| static GLuint uint_types_scale[5] = { |
| 0, |
| BRW_SURFACEFORMAT_R32_USCALED, |
| BRW_SURFACEFORMAT_R32G32_USCALED, |
| BRW_SURFACEFORMAT_R32G32B32_USCALED, |
| BRW_SURFACEFORMAT_R32G32B32A32_USCALED |
| }; |
| |
| static GLuint int_types_norm[5] = { |
| 0, |
| BRW_SURFACEFORMAT_R32_SNORM, |
| BRW_SURFACEFORMAT_R32G32_SNORM, |
| BRW_SURFACEFORMAT_R32G32B32_SNORM, |
| BRW_SURFACEFORMAT_R32G32B32A32_SNORM |
| }; |
| |
| static GLuint int_types_scale[5] = { |
| 0, |
| BRW_SURFACEFORMAT_R32_SSCALED, |
| BRW_SURFACEFORMAT_R32G32_SSCALED, |
| BRW_SURFACEFORMAT_R32G32B32_SSCALED, |
| BRW_SURFACEFORMAT_R32G32B32A32_SSCALED |
| }; |
| |
| static GLuint ushort_types_norm[5] = { |
| 0, |
| BRW_SURFACEFORMAT_R16_UNORM, |
| BRW_SURFACEFORMAT_R16G16_UNORM, |
| BRW_SURFACEFORMAT_R16G16B16_UNORM, |
| BRW_SURFACEFORMAT_R16G16B16A16_UNORM |
| }; |
| |
| static GLuint ushort_types_scale[5] = { |
| 0, |
| BRW_SURFACEFORMAT_R16_USCALED, |
| BRW_SURFACEFORMAT_R16G16_USCALED, |
| BRW_SURFACEFORMAT_R16G16B16_USCALED, |
| BRW_SURFACEFORMAT_R16G16B16A16_USCALED |
| }; |
| |
| static GLuint short_types_norm[5] = { |
| 0, |
| BRW_SURFACEFORMAT_R16_SNORM, |
| BRW_SURFACEFORMAT_R16G16_SNORM, |
| BRW_SURFACEFORMAT_R16G16B16_SNORM, |
| BRW_SURFACEFORMAT_R16G16B16A16_SNORM |
| }; |
| |
| static GLuint short_types_scale[5] = { |
| 0, |
| BRW_SURFACEFORMAT_R16_SSCALED, |
| BRW_SURFACEFORMAT_R16G16_SSCALED, |
| BRW_SURFACEFORMAT_R16G16B16_SSCALED, |
| BRW_SURFACEFORMAT_R16G16B16A16_SSCALED |
| }; |
| |
| static GLuint ubyte_types_norm[5] = { |
| 0, |
| BRW_SURFACEFORMAT_R8_UNORM, |
| BRW_SURFACEFORMAT_R8G8_UNORM, |
| BRW_SURFACEFORMAT_R8G8B8_UNORM, |
| BRW_SURFACEFORMAT_R8G8B8A8_UNORM |
| }; |
| |
| static GLuint ubyte_types_scale[5] = { |
| 0, |
| BRW_SURFACEFORMAT_R8_USCALED, |
| BRW_SURFACEFORMAT_R8G8_USCALED, |
| BRW_SURFACEFORMAT_R8G8B8_USCALED, |
| BRW_SURFACEFORMAT_R8G8B8A8_USCALED |
| }; |
| |
| static GLuint byte_types_norm[5] = { |
| 0, |
| BRW_SURFACEFORMAT_R8_SNORM, |
| BRW_SURFACEFORMAT_R8G8_SNORM, |
| BRW_SURFACEFORMAT_R8G8B8_SNORM, |
| BRW_SURFACEFORMAT_R8G8B8A8_SNORM |
| }; |
| |
| static GLuint byte_types_scale[5] = { |
| 0, |
| BRW_SURFACEFORMAT_R8_SSCALED, |
| BRW_SURFACEFORMAT_R8G8_SSCALED, |
| BRW_SURFACEFORMAT_R8G8B8_SSCALED, |
| BRW_SURFACEFORMAT_R8G8B8A8_SSCALED |
| }; |
| |
| |
| /** |
| * Given vertex array type/size/format/normalized info, return |
| * the appopriate hardware surface type. |
| * Format will be GL_RGBA or possibly GL_BGRA for GLubyte[4] color arrays. |
| */ |
| static GLuint get_surface_type( GLenum type, GLuint size, |
| GLenum format, GLboolean normalized ) |
| { |
| if (INTEL_DEBUG & DEBUG_VERTS) |
| _mesa_printf("type %s size %d normalized %d\n", |
| _mesa_lookup_enum_by_nr(type), size, normalized); |
| |
| if (normalized) { |
| switch (type) { |
| case GL_DOUBLE: return double_types[size]; |
| case GL_FLOAT: return float_types[size]; |
| case GL_INT: return int_types_norm[size]; |
| case GL_SHORT: return short_types_norm[size]; |
| case GL_BYTE: return byte_types_norm[size]; |
| case GL_UNSIGNED_INT: return uint_types_norm[size]; |
| case GL_UNSIGNED_SHORT: return ushort_types_norm[size]; |
| case GL_UNSIGNED_BYTE: |
| if (format == GL_BGRA) { |
| /* See GL_EXT_vertex_array_bgra */ |
| assert(size == 4); |
| return BRW_SURFACEFORMAT_B8G8R8A8_UNORM; |
| } |
| else { |
| return ubyte_types_norm[size]; |
| } |
| default: assert(0); return 0; |
| } |
| } |
| else { |
| assert(format == GL_RGBA); /* sanity check */ |
| switch (type) { |
| case GL_DOUBLE: return double_types[size]; |
| case GL_FLOAT: return float_types[size]; |
| case GL_INT: return int_types_scale[size]; |
| case GL_SHORT: return short_types_scale[size]; |
| case GL_BYTE: return byte_types_scale[size]; |
| case GL_UNSIGNED_INT: return uint_types_scale[size]; |
| case GL_UNSIGNED_SHORT: return ushort_types_scale[size]; |
| case GL_UNSIGNED_BYTE: return ubyte_types_scale[size]; |
| default: assert(0); return 0; |
| } |
| } |
| } |
| |
| |
| static GLuint get_size( GLenum type ) |
| { |
| switch (type) { |
| case GL_DOUBLE: return sizeof(GLdouble); |
| case GL_FLOAT: return sizeof(GLfloat); |
| case GL_INT: return sizeof(GLint); |
| case GL_SHORT: return sizeof(GLshort); |
| case GL_BYTE: return sizeof(GLbyte); |
| case GL_UNSIGNED_INT: return sizeof(GLuint); |
| case GL_UNSIGNED_SHORT: return sizeof(GLushort); |
| case GL_UNSIGNED_BYTE: return sizeof(GLubyte); |
| default: return 0; |
| } |
| } |
| |
| static GLuint get_index_type(GLenum type) |
| { |
| switch (type) { |
| case GL_UNSIGNED_BYTE: return BRW_INDEX_BYTE; |
| case GL_UNSIGNED_SHORT: return BRW_INDEX_WORD; |
| case GL_UNSIGNED_INT: return BRW_INDEX_DWORD; |
| default: assert(0); return 0; |
| } |
| } |
| |
| static void wrap_buffers( struct brw_context *brw, |
| GLuint size ) |
| { |
| if (size < BRW_UPLOAD_INIT_SIZE) |
| size = BRW_UPLOAD_INIT_SIZE; |
| |
| brw->vb.upload.offset = 0; |
| |
| if (brw->vb.upload.bo != NULL) |
| dri_bo_unreference(brw->vb.upload.bo); |
| brw->vb.upload.bo = dri_bo_alloc(brw->intel.bufmgr, "temporary VBO", |
| size, 1); |
| |
| /* Set the internal VBO\ to no-backing-store. We only use them as a |
| * temporary within a brw_try_draw_prims while the lock is held. |
| */ |
| /* DON'T DO THIS AS IF WE HAVE TO RE-ORG MEMORY WE NEED SOMEWHERE WITH |
| FAKE TO PUSH THIS STUFF */ |
| /* |
| if (!brw->intel.ttm) |
| dri_bo_fake_disable_backing_store(brw->vb.upload.bo, NULL, NULL); |
| */ |
| } |
| |
| static void get_space( struct brw_context *brw, |
| GLuint size, |
| dri_bo **bo_return, |
| GLuint *offset_return ) |
| { |
| size = ALIGN(size, 64); |
| |
| if (brw->vb.upload.bo == NULL || |
| brw->vb.upload.offset + size > brw->vb.upload.bo->size) { |
| wrap_buffers(brw, size); |
| } |
| |
| assert(*bo_return == NULL); |
| dri_bo_reference(brw->vb.upload.bo); |
| *bo_return = brw->vb.upload.bo; |
| *offset_return = brw->vb.upload.offset; |
| brw->vb.upload.offset += size; |
| } |
| |
| static void |
| copy_array_to_vbo_array( struct brw_context *brw, |
| struct brw_vertex_element *element, |
| GLuint dst_stride) |
| { |
| struct intel_context *intel = &brw->intel; |
| GLuint size = element->count * dst_stride; |
| |
| get_space(brw, size, &element->bo, &element->offset); |
| |
| if (element->glarray->StrideB == 0) { |
| assert(element->count == 1); |
| element->stride = 0; |
| } else { |
| element->stride = dst_stride; |
| } |
| |
| if (dst_stride == element->glarray->StrideB) { |
| if (intel->intelScreen->kernel_exec_fencing) { |
| drm_intel_gem_bo_map_gtt(element->bo); |
| memcpy((char *)element->bo->virtual + element->offset, |
| element->glarray->Ptr, size); |
| drm_intel_gem_bo_unmap_gtt(element->bo); |
| } else { |
| dri_bo_subdata(element->bo, |
| element->offset, |
| size, |
| element->glarray->Ptr); |
| } |
| } else { |
| char *dest; |
| const unsigned char *src = element->glarray->Ptr; |
| int i; |
| |
| if (intel->intelScreen->kernel_exec_fencing) { |
| drm_intel_gem_bo_map_gtt(element->bo); |
| dest = element->bo->virtual; |
| dest += element->offset; |
| |
| for (i = 0; i < element->count; i++) { |
| memcpy(dest, src, dst_stride); |
| src += element->glarray->StrideB; |
| dest += dst_stride; |
| } |
| |
| drm_intel_gem_bo_unmap_gtt(element->bo); |
| } else { |
| void *data; |
| |
| data = _mesa_malloc(dst_stride * element->count); |
| dest = data; |
| for (i = 0; i < element->count; i++) { |
| memcpy(dest, src, dst_stride); |
| src += element->glarray->StrideB; |
| dest += dst_stride; |
| } |
| |
| dri_bo_subdata(element->bo, |
| element->offset, |
| size, |
| data); |
| |
| _mesa_free(data); |
| } |
| } |
| } |
| |
| static void brw_prepare_vertices(struct brw_context *brw) |
| { |
| GLcontext *ctx = &brw->intel.ctx; |
| struct intel_context *intel = intel_context(ctx); |
| GLbitfield vs_inputs = brw->vs.prog_data->inputs_read; |
| GLuint i; |
| const unsigned char *ptr = NULL; |
| GLuint interleave = 0; |
| unsigned int min_index = brw->vb.min_index; |
| unsigned int max_index = brw->vb.max_index; |
| |
| struct brw_vertex_element *upload[VERT_ATTRIB_MAX]; |
| GLuint nr_uploads = 0; |
| |
| /* First build an array of pointers to ve's in vb.inputs_read |
| */ |
| if (0) |
| _mesa_printf("%s %d..%d\n", __FUNCTION__, min_index, max_index); |
| |
| /* Accumulate the list of enabled arrays. */ |
| brw->vb.nr_enabled = 0; |
| while (vs_inputs) { |
| GLuint i = _mesa_ffsll(vs_inputs) - 1; |
| struct brw_vertex_element *input = &brw->vb.inputs[i]; |
| |
| vs_inputs &= ~(1 << i); |
| brw->vb.enabled[brw->vb.nr_enabled++] = input; |
| } |
| |
| /* XXX: In the rare cases where this happens we fallback all |
| * the way to software rasterization, although a tnl fallback |
| * would be sufficient. I don't know of *any* real world |
| * cases with > 17 vertex attributes enabled, so it probably |
| * isn't an issue at this point. |
| */ |
| if (brw->vb.nr_enabled >= BRW_VEP_MAX) { |
| intel->Fallback = GL_TRUE; /* boolean, not bitfield */ |
| return; |
| } |
| |
| for (i = 0; i < brw->vb.nr_enabled; i++) { |
| struct brw_vertex_element *input = brw->vb.enabled[i]; |
| |
| input->element_size = get_size(input->glarray->Type) * input->glarray->Size; |
| |
| if (_mesa_is_bufferobj(input->glarray->BufferObj)) { |
| struct intel_buffer_object *intel_buffer = |
| intel_buffer_object(input->glarray->BufferObj); |
| |
| /* Named buffer object: Just reference its contents directly. */ |
| dri_bo_unreference(input->bo); |
| input->bo = intel_bufferobj_buffer(intel, intel_buffer, |
| INTEL_READ); |
| dri_bo_reference(input->bo); |
| input->offset = (unsigned long)input->glarray->Ptr; |
| input->stride = input->glarray->StrideB; |
| input->count = input->glarray->_MaxElement; |
| |
| /* This is a common place to reach if the user mistakenly supplies |
| * a pointer in place of a VBO offset. If we just let it go through, |
| * we may end up dereferencing a pointer beyond the bounds of the |
| * GTT. We would hope that the VBO's max_index would save us, but |
| * Mesa appears to hand us min/max values not clipped to the |
| * array object's _MaxElement, and _MaxElement frequently appears |
| * to be wrong anyway. |
| * |
| * The VBO spec allows application termination in this case, and it's |
| * probably a service to the poor programmer to do so rather than |
| * trying to just not render. |
| */ |
| assert(input->offset < input->bo->size); |
| } else { |
| input->count = input->glarray->StrideB ? max_index + 1 - min_index : 1; |
| if (input->bo != NULL) { |
| /* Already-uploaded vertex data is present from a previous |
| * prepare_vertices, but we had to re-validate state due to |
| * check_aperture failing and a new batch being produced. |
| */ |
| continue; |
| } |
| |
| /* Queue the buffer object up to be uploaded in the next pass, |
| * when we've decided if we're doing interleaved or not. |
| */ |
| if (input->attrib == VERT_ATTRIB_POS) { |
| /* Position array not properly enabled: |
| */ |
| if (input->glarray->StrideB == 0) { |
| intel->Fallback = GL_TRUE; /* boolean, not bitfield */ |
| return; |
| } |
| |
| interleave = input->glarray->StrideB; |
| ptr = input->glarray->Ptr; |
| } |
| else if (interleave != input->glarray->StrideB || |
| (const unsigned char *)input->glarray->Ptr - ptr < 0 || |
| (const unsigned char *)input->glarray->Ptr - ptr > interleave) |
| { |
| interleave = 0; |
| } |
| |
| upload[nr_uploads++] = input; |
| |
| /* We rebase drawing to start at element zero only when |
| * varyings are not in vbos, which means we can end up |
| * uploading non-varying arrays (stride != 0) when min_index |
| * is zero. This doesn't matter as the amount to upload is |
| * the same for these arrays whether the draw call is rebased |
| * or not - we just have to upload the one element. |
| */ |
| assert(min_index == 0 || input->glarray->StrideB == 0); |
| } |
| } |
| |
| /* Handle any arrays to be uploaded. */ |
| if (nr_uploads > 1 && interleave && interleave <= 256) { |
| /* All uploads are interleaved, so upload the arrays together as |
| * interleaved. First, upload the contents and set up upload[0]. |
| */ |
| copy_array_to_vbo_array(brw, upload[0], interleave); |
| |
| for (i = 1; i < nr_uploads; i++) { |
| /* Then, just point upload[i] at upload[0]'s buffer. */ |
| upload[i]->stride = interleave; |
| upload[i]->offset = upload[0]->offset + |
| ((const unsigned char *)upload[i]->glarray->Ptr - ptr); |
| upload[i]->bo = upload[0]->bo; |
| dri_bo_reference(upload[i]->bo); |
| } |
| } |
| else { |
| /* Upload non-interleaved arrays */ |
| for (i = 0; i < nr_uploads; i++) { |
| copy_array_to_vbo_array(brw, upload[i], upload[i]->element_size); |
| } |
| } |
| |
| brw_prepare_query_begin(brw); |
| |
| for (i = 0; i < brw->vb.nr_enabled; i++) { |
| struct brw_vertex_element *input = brw->vb.enabled[i]; |
| |
| brw_add_validated_bo(brw, input->bo); |
| } |
| } |
| |
| static void brw_emit_vertices(struct brw_context *brw) |
| { |
| GLcontext *ctx = &brw->intel.ctx; |
| struct intel_context *intel = intel_context(ctx); |
| GLuint i; |
| |
| brw_emit_query_begin(brw); |
| |
| /* If the VS doesn't read any inputs (calculating vertex position from |
| * a state variable for some reason, for example), emit a single pad |
| * VERTEX_ELEMENT struct and bail. |
| * |
| * The stale VB state stays in place, but they don't do anything unless |
| * a VE loads from them. |
| */ |
| if (brw->vb.nr_enabled == 0) { |
| BEGIN_BATCH(3, IGNORE_CLIPRECTS); |
| OUT_BATCH((CMD_VERTEX_ELEMENT << 16) | 1); |
| OUT_BATCH((0 << BRW_VE0_INDEX_SHIFT) | |
| BRW_VE0_VALID | |
| (BRW_SURFACEFORMAT_R32G32B32A32_FLOAT << BRW_VE0_FORMAT_SHIFT) | |
| (0 << BRW_VE0_SRC_OFFSET_SHIFT)); |
| OUT_BATCH((BRW_VE1_COMPONENT_STORE_0 << BRW_VE1_COMPONENT_0_SHIFT) | |
| (BRW_VE1_COMPONENT_STORE_0 << BRW_VE1_COMPONENT_1_SHIFT) | |
| (BRW_VE1_COMPONENT_STORE_0 << BRW_VE1_COMPONENT_2_SHIFT) | |
| (BRW_VE1_COMPONENT_STORE_1_FLT << BRW_VE1_COMPONENT_3_SHIFT)); |
| ADVANCE_BATCH(); |
| return; |
| } |
| |
| /* Now emit VB and VEP state packets. |
| * |
| * This still defines a hardware VB for each input, even if they |
| * are interleaved or from the same VBO. TBD if this makes a |
| * performance difference. |
| */ |
| BEGIN_BATCH(1 + brw->vb.nr_enabled * 4, IGNORE_CLIPRECTS); |
| OUT_BATCH((CMD_VERTEX_BUFFER << 16) | |
| ((1 + brw->vb.nr_enabled * 4) - 2)); |
| |
| for (i = 0; i < brw->vb.nr_enabled; i++) { |
| struct brw_vertex_element *input = brw->vb.enabled[i]; |
| |
| OUT_BATCH((i << BRW_VB0_INDEX_SHIFT) | |
| BRW_VB0_ACCESS_VERTEXDATA | |
| (input->stride << BRW_VB0_PITCH_SHIFT)); |
| OUT_RELOC(input->bo, |
| I915_GEM_DOMAIN_VERTEX, 0, |
| input->offset); |
| if (BRW_IS_IGDNG(brw)) { |
| OUT_RELOC(input->bo, |
| I915_GEM_DOMAIN_VERTEX, 0, |
| input->bo->size - 1); |
| } else |
| OUT_BATCH(input->stride ? input->count : 0); |
| OUT_BATCH(0); /* Instance data step rate */ |
| } |
| ADVANCE_BATCH(); |
| |
| BEGIN_BATCH(1 + brw->vb.nr_enabled * 2, IGNORE_CLIPRECTS); |
| OUT_BATCH((CMD_VERTEX_ELEMENT << 16) | ((1 + brw->vb.nr_enabled * 2) - 2)); |
| for (i = 0; i < brw->vb.nr_enabled; i++) { |
| struct brw_vertex_element *input = brw->vb.enabled[i]; |
| uint32_t format = get_surface_type(input->glarray->Type, |
| input->glarray->Size, |
| input->glarray->Format, |
| input->glarray->Normalized); |
| uint32_t comp0 = BRW_VE1_COMPONENT_STORE_SRC; |
| uint32_t comp1 = BRW_VE1_COMPONENT_STORE_SRC; |
| uint32_t comp2 = BRW_VE1_COMPONENT_STORE_SRC; |
| uint32_t comp3 = BRW_VE1_COMPONENT_STORE_SRC; |
| |
| switch (input->glarray->Size) { |
| case 0: comp0 = BRW_VE1_COMPONENT_STORE_0; |
| case 1: comp1 = BRW_VE1_COMPONENT_STORE_0; |
| case 2: comp2 = BRW_VE1_COMPONENT_STORE_0; |
| case 3: comp3 = BRW_VE1_COMPONENT_STORE_1_FLT; |
| break; |
| } |
| |
| OUT_BATCH((i << BRW_VE0_INDEX_SHIFT) | |
| BRW_VE0_VALID | |
| (format << BRW_VE0_FORMAT_SHIFT) | |
| (0 << BRW_VE0_SRC_OFFSET_SHIFT)); |
| |
| if (BRW_IS_IGDNG(brw)) |
| OUT_BATCH((comp0 << BRW_VE1_COMPONENT_0_SHIFT) | |
| (comp1 << BRW_VE1_COMPONENT_1_SHIFT) | |
| (comp2 << BRW_VE1_COMPONENT_2_SHIFT) | |
| (comp3 << BRW_VE1_COMPONENT_3_SHIFT)); |
| else |
| OUT_BATCH((comp0 << BRW_VE1_COMPONENT_0_SHIFT) | |
| (comp1 << BRW_VE1_COMPONENT_1_SHIFT) | |
| (comp2 << BRW_VE1_COMPONENT_2_SHIFT) | |
| (comp3 << BRW_VE1_COMPONENT_3_SHIFT) | |
| ((i * 4) << BRW_VE1_DST_OFFSET_SHIFT)); |
| } |
| ADVANCE_BATCH(); |
| } |
| |
| const struct brw_tracked_state brw_vertices = { |
| .dirty = { |
| .mesa = 0, |
| .brw = BRW_NEW_BATCH | BRW_NEW_VERTICES, |
| .cache = 0, |
| }, |
| .prepare = brw_prepare_vertices, |
| .emit = brw_emit_vertices, |
| }; |
| |
| static void brw_prepare_indices(struct brw_context *brw) |
| { |
| GLcontext *ctx = &brw->intel.ctx; |
| struct intel_context *intel = &brw->intel; |
| const struct _mesa_index_buffer *index_buffer = brw->ib.ib; |
| GLuint ib_size; |
| dri_bo *bo = NULL; |
| struct gl_buffer_object *bufferobj; |
| GLuint offset; |
| GLuint ib_type_size; |
| |
| if (index_buffer == NULL) |
| return; |
| |
| ib_type_size = get_size(index_buffer->type); |
| ib_size = ib_type_size * index_buffer->count; |
| bufferobj = index_buffer->obj;; |
| |
| /* Turn into a proper VBO: |
| */ |
| if (!_mesa_is_bufferobj(bufferobj)) { |
| brw->ib.start_vertex_offset = 0; |
| |
| /* Get new bufferobj, offset: |
| */ |
| get_space(brw, ib_size, &bo, &offset); |
| |
| /* Straight upload |
| */ |
| if (intel->intelScreen->kernel_exec_fencing) { |
| drm_intel_gem_bo_map_gtt(bo); |
| memcpy((char *)bo->virtual + offset, index_buffer->ptr, ib_size); |
| drm_intel_gem_bo_unmap_gtt(bo); |
| } else { |
| dri_bo_subdata(bo, offset, ib_size, index_buffer->ptr); |
| } |
| } else { |
| offset = (GLuint) (unsigned long) index_buffer->ptr; |
| brw->ib.start_vertex_offset = 0; |
| |
| /* If the index buffer isn't aligned to its element size, we have to |
| * rebase it into a temporary. |
| */ |
| if ((get_size(index_buffer->type) - 1) & offset) { |
| GLubyte *map = ctx->Driver.MapBuffer(ctx, |
| GL_ELEMENT_ARRAY_BUFFER_ARB, |
| GL_DYNAMIC_DRAW_ARB, |
| bufferobj); |
| map += offset; |
| |
| get_space(brw, ib_size, &bo, &offset); |
| |
| dri_bo_subdata(bo, offset, ib_size, map); |
| |
| ctx->Driver.UnmapBuffer(ctx, GL_ELEMENT_ARRAY_BUFFER_ARB, bufferobj); |
| } else { |
| bo = intel_bufferobj_buffer(intel, intel_buffer_object(bufferobj), |
| INTEL_READ); |
| dri_bo_reference(bo); |
| |
| /* Use CMD_3D_PRIM's start_vertex_offset to avoid re-uploading |
| * the index buffer state when we're just moving the start index |
| * of our drawing. |
| */ |
| brw->ib.start_vertex_offset = offset / ib_type_size; |
| offset = 0; |
| ib_size = bo->size; |
| } |
| } |
| |
| if (brw->ib.bo != bo || |
| brw->ib.offset != offset || |
| brw->ib.size != ib_size) |
| { |
| drm_intel_bo_unreference(brw->ib.bo); |
| brw->ib.bo = bo; |
| brw->ib.offset = offset; |
| brw->ib.size = ib_size; |
| |
| brw->state.dirty.brw |= BRW_NEW_INDEX_BUFFER; |
| } else { |
| drm_intel_bo_unreference(bo); |
| } |
| |
| brw_add_validated_bo(brw, brw->ib.bo); |
| } |
| |
| const struct brw_tracked_state brw_indices = { |
| .dirty = { |
| .mesa = 0, |
| .brw = BRW_NEW_INDICES, |
| .cache = 0, |
| }, |
| .prepare = brw_prepare_indices, |
| }; |
| |
| static void brw_emit_index_buffer(struct brw_context *brw) |
| { |
| struct intel_context *intel = &brw->intel; |
| const struct _mesa_index_buffer *index_buffer = brw->ib.ib; |
| |
| if (index_buffer == NULL) |
| return; |
| |
| /* Emit the indexbuffer packet: |
| */ |
| { |
| struct brw_indexbuffer ib; |
| |
| memset(&ib, 0, sizeof(ib)); |
| |
| ib.header.bits.opcode = CMD_INDEX_BUFFER; |
| ib.header.bits.length = sizeof(ib)/4 - 2; |
| ib.header.bits.index_format = get_index_type(index_buffer->type); |
| ib.header.bits.cut_index_enable = 0; |
| |
| BEGIN_BATCH(4, IGNORE_CLIPRECTS); |
| OUT_BATCH( ib.header.dword ); |
| OUT_RELOC(brw->ib.bo, |
| I915_GEM_DOMAIN_VERTEX, 0, |
| brw->ib.offset); |
| OUT_RELOC(brw->ib.bo, |
| I915_GEM_DOMAIN_VERTEX, 0, |
| brw->ib.offset + brw->ib.size - 1); |
| OUT_BATCH( 0 ); |
| ADVANCE_BATCH(); |
| } |
| } |
| |
| const struct brw_tracked_state brw_index_buffer = { |
| .dirty = { |
| .mesa = 0, |
| .brw = BRW_NEW_BATCH | BRW_NEW_INDEX_BUFFER, |
| .cache = 0, |
| }, |
| .emit = brw_emit_index_buffer, |
| }; |