| /* |
| * Copyright 2003 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 (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 NONINFRINGEMENT. |
| * IN NO EVENT SHALL VMWARE 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/bufferobj.h" |
| #include "main/context.h" |
| #include "main/enums.h" |
| #include "main/macros.h" |
| #include "main/glformats.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 const GLuint double_types_float[5] = { |
| 0, |
| BRW_SURFACEFORMAT_R64_FLOAT, |
| BRW_SURFACEFORMAT_R64G64_FLOAT, |
| BRW_SURFACEFORMAT_R64G64B64_FLOAT, |
| BRW_SURFACEFORMAT_R64G64B64A64_FLOAT |
| }; |
| |
| static const GLuint double_types_passthru[5] = { |
| 0, |
| BRW_SURFACEFORMAT_R64_PASSTHRU, |
| BRW_SURFACEFORMAT_R64G64_PASSTHRU, |
| BRW_SURFACEFORMAT_R64G64B64_PASSTHRU, |
| BRW_SURFACEFORMAT_R64G64B64A64_PASSTHRU |
| }; |
| |
| static const GLuint float_types[5] = { |
| 0, |
| BRW_SURFACEFORMAT_R32_FLOAT, |
| BRW_SURFACEFORMAT_R32G32_FLOAT, |
| BRW_SURFACEFORMAT_R32G32B32_FLOAT, |
| BRW_SURFACEFORMAT_R32G32B32A32_FLOAT |
| }; |
| |
| static const GLuint half_float_types[5] = { |
| 0, |
| BRW_SURFACEFORMAT_R16_FLOAT, |
| BRW_SURFACEFORMAT_R16G16_FLOAT, |
| BRW_SURFACEFORMAT_R16G16B16_FLOAT, |
| BRW_SURFACEFORMAT_R16G16B16A16_FLOAT |
| }; |
| |
| static const GLuint fixed_point_types[5] = { |
| 0, |
| BRW_SURFACEFORMAT_R32_SFIXED, |
| BRW_SURFACEFORMAT_R32G32_SFIXED, |
| BRW_SURFACEFORMAT_R32G32B32_SFIXED, |
| BRW_SURFACEFORMAT_R32G32B32A32_SFIXED, |
| }; |
| |
| static const GLuint uint_types_direct[5] = { |
| 0, |
| BRW_SURFACEFORMAT_R32_UINT, |
| BRW_SURFACEFORMAT_R32G32_UINT, |
| BRW_SURFACEFORMAT_R32G32B32_UINT, |
| BRW_SURFACEFORMAT_R32G32B32A32_UINT |
| }; |
| |
| static const GLuint uint_types_norm[5] = { |
| 0, |
| BRW_SURFACEFORMAT_R32_UNORM, |
| BRW_SURFACEFORMAT_R32G32_UNORM, |
| BRW_SURFACEFORMAT_R32G32B32_UNORM, |
| BRW_SURFACEFORMAT_R32G32B32A32_UNORM |
| }; |
| |
| static const GLuint uint_types_scale[5] = { |
| 0, |
| BRW_SURFACEFORMAT_R32_USCALED, |
| BRW_SURFACEFORMAT_R32G32_USCALED, |
| BRW_SURFACEFORMAT_R32G32B32_USCALED, |
| BRW_SURFACEFORMAT_R32G32B32A32_USCALED |
| }; |
| |
| static const GLuint int_types_direct[5] = { |
| 0, |
| BRW_SURFACEFORMAT_R32_SINT, |
| BRW_SURFACEFORMAT_R32G32_SINT, |
| BRW_SURFACEFORMAT_R32G32B32_SINT, |
| BRW_SURFACEFORMAT_R32G32B32A32_SINT |
| }; |
| |
| static const GLuint int_types_norm[5] = { |
| 0, |
| BRW_SURFACEFORMAT_R32_SNORM, |
| BRW_SURFACEFORMAT_R32G32_SNORM, |
| BRW_SURFACEFORMAT_R32G32B32_SNORM, |
| BRW_SURFACEFORMAT_R32G32B32A32_SNORM |
| }; |
| |
| static const GLuint int_types_scale[5] = { |
| 0, |
| BRW_SURFACEFORMAT_R32_SSCALED, |
| BRW_SURFACEFORMAT_R32G32_SSCALED, |
| BRW_SURFACEFORMAT_R32G32B32_SSCALED, |
| BRW_SURFACEFORMAT_R32G32B32A32_SSCALED |
| }; |
| |
| static const GLuint ushort_types_direct[5] = { |
| 0, |
| BRW_SURFACEFORMAT_R16_UINT, |
| BRW_SURFACEFORMAT_R16G16_UINT, |
| BRW_SURFACEFORMAT_R16G16B16_UINT, |
| BRW_SURFACEFORMAT_R16G16B16A16_UINT |
| }; |
| |
| static const GLuint ushort_types_norm[5] = { |
| 0, |
| BRW_SURFACEFORMAT_R16_UNORM, |
| BRW_SURFACEFORMAT_R16G16_UNORM, |
| BRW_SURFACEFORMAT_R16G16B16_UNORM, |
| BRW_SURFACEFORMAT_R16G16B16A16_UNORM |
| }; |
| |
| static const GLuint ushort_types_scale[5] = { |
| 0, |
| BRW_SURFACEFORMAT_R16_USCALED, |
| BRW_SURFACEFORMAT_R16G16_USCALED, |
| BRW_SURFACEFORMAT_R16G16B16_USCALED, |
| BRW_SURFACEFORMAT_R16G16B16A16_USCALED |
| }; |
| |
| static const GLuint short_types_direct[5] = { |
| 0, |
| BRW_SURFACEFORMAT_R16_SINT, |
| BRW_SURFACEFORMAT_R16G16_SINT, |
| BRW_SURFACEFORMAT_R16G16B16_SINT, |
| BRW_SURFACEFORMAT_R16G16B16A16_SINT |
| }; |
| |
| static const GLuint short_types_norm[5] = { |
| 0, |
| BRW_SURFACEFORMAT_R16_SNORM, |
| BRW_SURFACEFORMAT_R16G16_SNORM, |
| BRW_SURFACEFORMAT_R16G16B16_SNORM, |
| BRW_SURFACEFORMAT_R16G16B16A16_SNORM |
| }; |
| |
| static const GLuint short_types_scale[5] = { |
| 0, |
| BRW_SURFACEFORMAT_R16_SSCALED, |
| BRW_SURFACEFORMAT_R16G16_SSCALED, |
| BRW_SURFACEFORMAT_R16G16B16_SSCALED, |
| BRW_SURFACEFORMAT_R16G16B16A16_SSCALED |
| }; |
| |
| static const GLuint ubyte_types_direct[5] = { |
| 0, |
| BRW_SURFACEFORMAT_R8_UINT, |
| BRW_SURFACEFORMAT_R8G8_UINT, |
| BRW_SURFACEFORMAT_R8G8B8_UINT, |
| BRW_SURFACEFORMAT_R8G8B8A8_UINT |
| }; |
| |
| static const GLuint ubyte_types_norm[5] = { |
| 0, |
| BRW_SURFACEFORMAT_R8_UNORM, |
| BRW_SURFACEFORMAT_R8G8_UNORM, |
| BRW_SURFACEFORMAT_R8G8B8_UNORM, |
| BRW_SURFACEFORMAT_R8G8B8A8_UNORM |
| }; |
| |
| static const GLuint ubyte_types_scale[5] = { |
| 0, |
| BRW_SURFACEFORMAT_R8_USCALED, |
| BRW_SURFACEFORMAT_R8G8_USCALED, |
| BRW_SURFACEFORMAT_R8G8B8_USCALED, |
| BRW_SURFACEFORMAT_R8G8B8A8_USCALED |
| }; |
| |
| static const GLuint byte_types_direct[5] = { |
| 0, |
| BRW_SURFACEFORMAT_R8_SINT, |
| BRW_SURFACEFORMAT_R8G8_SINT, |
| BRW_SURFACEFORMAT_R8G8B8_SINT, |
| BRW_SURFACEFORMAT_R8G8B8A8_SINT |
| }; |
| |
| static const GLuint byte_types_norm[5] = { |
| 0, |
| BRW_SURFACEFORMAT_R8_SNORM, |
| BRW_SURFACEFORMAT_R8G8_SNORM, |
| BRW_SURFACEFORMAT_R8G8B8_SNORM, |
| BRW_SURFACEFORMAT_R8G8B8A8_SNORM |
| }; |
| |
| static const GLuint byte_types_scale[5] = { |
| 0, |
| BRW_SURFACEFORMAT_R8_SSCALED, |
| BRW_SURFACEFORMAT_R8G8_SSCALED, |
| BRW_SURFACEFORMAT_R8G8B8_SSCALED, |
| BRW_SURFACEFORMAT_R8G8B8A8_SSCALED |
| }; |
| |
| static GLuint |
| double_types(struct brw_context *brw, |
| int size, |
| GLboolean doubles) |
| { |
| /* From the BDW PRM, Volume 2d, page 588 (VERTEX_ELEMENT_STATE): |
| * "When SourceElementFormat is set to one of the *64*_PASSTHRU formats, |
| * 64-bit components are stored in the URB without any conversion." |
| * Also included on BDW PRM, Volume 7, page 470, table "Source Element |
| * Formats Supported in VF Unit" |
| * Previous PRMs don't include those references. |
| */ |
| return (brw->gen >= 8 && doubles |
| ? double_types_passthru[size] |
| : double_types_float[size]); |
| } |
| |
| /** |
| * 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. |
| */ |
| unsigned |
| brw_get_vertex_surface_type(struct brw_context *brw, |
| const struct gl_vertex_array *glarray) |
| { |
| int size = glarray->Size; |
| const bool is_ivybridge_or_older = |
| brw->gen <= 7 && !brw->is_baytrail && !brw->is_haswell; |
| |
| if (unlikely(INTEL_DEBUG & DEBUG_VERTS)) |
| fprintf(stderr, "type %s size %d normalized %d\n", |
| _mesa_enum_to_string(glarray->Type), |
| glarray->Size, glarray->Normalized); |
| |
| if (glarray->Integer) { |
| assert(glarray->Format == GL_RGBA); /* sanity check */ |
| switch (glarray->Type) { |
| case GL_INT: return int_types_direct[size]; |
| case GL_SHORT: |
| if (is_ivybridge_or_older && size == 3) |
| return short_types_direct[4]; |
| else |
| return short_types_direct[size]; |
| case GL_BYTE: |
| if (is_ivybridge_or_older && size == 3) |
| return byte_types_direct[4]; |
| else |
| return byte_types_direct[size]; |
| case GL_UNSIGNED_INT: return uint_types_direct[size]; |
| case GL_UNSIGNED_SHORT: |
| if (is_ivybridge_or_older && size == 3) |
| return ushort_types_direct[4]; |
| else |
| return ushort_types_direct[size]; |
| case GL_UNSIGNED_BYTE: |
| if (is_ivybridge_or_older && size == 3) |
| return ubyte_types_direct[4]; |
| else |
| return ubyte_types_direct[size]; |
| default: unreachable("not reached"); |
| } |
| } else if (glarray->Type == GL_UNSIGNED_INT_10F_11F_11F_REV) { |
| return BRW_SURFACEFORMAT_R11G11B10_FLOAT; |
| } else if (glarray->Normalized) { |
| switch (glarray->Type) { |
| case GL_DOUBLE: return double_types(brw, size, glarray->Doubles); |
| case GL_FLOAT: return float_types[size]; |
| case GL_HALF_FLOAT: |
| case GL_HALF_FLOAT_OES: |
| if (brw->gen < 6 && size == 3) |
| return half_float_types[4]; |
| else |
| return half_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 (glarray->Format == GL_BGRA) { |
| /* See GL_EXT_vertex_array_bgra */ |
| assert(size == 4); |
| return BRW_SURFACEFORMAT_B8G8R8A8_UNORM; |
| } |
| else { |
| return ubyte_types_norm[size]; |
| } |
| case GL_FIXED: |
| if (brw->gen >= 8 || brw->is_haswell) |
| return fixed_point_types[size]; |
| |
| /* This produces GL_FIXED inputs as values between INT32_MIN and |
| * INT32_MAX, which will be scaled down by 1/65536 by the VS. |
| */ |
| return int_types_scale[size]; |
| /* See GL_ARB_vertex_type_2_10_10_10_rev. |
| * W/A: Pre-Haswell, the hardware doesn't really support the formats we'd |
| * like to use here, so upload everything as UINT and fix |
| * it in the shader |
| */ |
| case GL_INT_2_10_10_10_REV: |
| assert(size == 4); |
| if (brw->gen >= 8 || brw->is_haswell) { |
| return glarray->Format == GL_BGRA |
| ? BRW_SURFACEFORMAT_B10G10R10A2_SNORM |
| : BRW_SURFACEFORMAT_R10G10B10A2_SNORM; |
| } |
| return BRW_SURFACEFORMAT_R10G10B10A2_UINT; |
| case GL_UNSIGNED_INT_2_10_10_10_REV: |
| assert(size == 4); |
| if (brw->gen >= 8 || brw->is_haswell) { |
| return glarray->Format == GL_BGRA |
| ? BRW_SURFACEFORMAT_B10G10R10A2_UNORM |
| : BRW_SURFACEFORMAT_R10G10B10A2_UNORM; |
| } |
| return BRW_SURFACEFORMAT_R10G10B10A2_UINT; |
| default: unreachable("not reached"); |
| } |
| } |
| else { |
| /* See GL_ARB_vertex_type_2_10_10_10_rev. |
| * W/A: the hardware doesn't really support the formats we'd |
| * like to use here, so upload everything as UINT and fix |
| * it in the shader |
| */ |
| if (glarray->Type == GL_INT_2_10_10_10_REV) { |
| assert(size == 4); |
| if (brw->gen >= 8 || brw->is_haswell) { |
| return glarray->Format == GL_BGRA |
| ? BRW_SURFACEFORMAT_B10G10R10A2_SSCALED |
| : BRW_SURFACEFORMAT_R10G10B10A2_SSCALED; |
| } |
| return BRW_SURFACEFORMAT_R10G10B10A2_UINT; |
| } else if (glarray->Type == GL_UNSIGNED_INT_2_10_10_10_REV) { |
| assert(size == 4); |
| if (brw->gen >= 8 || brw->is_haswell) { |
| return glarray->Format == GL_BGRA |
| ? BRW_SURFACEFORMAT_B10G10R10A2_USCALED |
| : BRW_SURFACEFORMAT_R10G10B10A2_USCALED; |
| } |
| return BRW_SURFACEFORMAT_R10G10B10A2_UINT; |
| } |
| assert(glarray->Format == GL_RGBA); /* sanity check */ |
| switch (glarray->Type) { |
| case GL_DOUBLE: return double_types(brw, size, glarray->Doubles); |
| case GL_FLOAT: return float_types[size]; |
| case GL_HALF_FLOAT: |
| case GL_HALF_FLOAT_OES: |
| if (brw->gen < 6 && size == 3) |
| return half_float_types[4]; |
| else |
| return half_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]; |
| case GL_FIXED: |
| if (brw->gen >= 8 || brw->is_haswell) |
| return fixed_point_types[size]; |
| |
| /* This produces GL_FIXED inputs as values between INT32_MIN and |
| * INT32_MAX, which will be scaled down by 1/65536 by the VS. |
| */ |
| return int_types_scale[size]; |
| default: unreachable("not reached"); |
| } |
| } |
| } |
| |
| static void |
| copy_array_to_vbo_array(struct brw_context *brw, |
| struct brw_vertex_element *element, |
| int min, int max, |
| struct brw_vertex_buffer *buffer, |
| GLuint dst_stride) |
| { |
| const int src_stride = element->glarray->StrideB; |
| |
| /* If the source stride is zero, we just want to upload the current |
| * attribute once and set the buffer's stride to 0. There's no need |
| * to replicate it out. |
| */ |
| if (src_stride == 0) { |
| intel_upload_data(brw, element->glarray->Ptr, |
| element->glarray->_ElementSize, |
| element->glarray->_ElementSize, |
| &buffer->bo, &buffer->offset); |
| |
| buffer->stride = 0; |
| buffer->size = element->glarray->_ElementSize; |
| return; |
| } |
| |
| const unsigned char *src = element->glarray->Ptr + min * src_stride; |
| int count = max - min + 1; |
| GLuint size = count * dst_stride; |
| uint8_t *dst = intel_upload_space(brw, size, dst_stride, |
| &buffer->bo, &buffer->offset); |
| |
| /* The GL 4.5 spec says: |
| * "If any enabled array’s buffer binding is zero when DrawArrays or |
| * one of the other drawing commands defined in section 10.4 is called, |
| * the result is undefined." |
| * |
| * In this case, let's the dst with undefined values |
| */ |
| if (src != NULL) { |
| if (dst_stride == src_stride) { |
| memcpy(dst, src, size); |
| } else { |
| while (count--) { |
| memcpy(dst, src, dst_stride); |
| src += src_stride; |
| dst += dst_stride; |
| } |
| } |
| } |
| buffer->stride = dst_stride; |
| buffer->size = size; |
| } |
| |
| void |
| brw_prepare_vertices(struct brw_context *brw) |
| { |
| struct gl_context *ctx = &brw->ctx; |
| /* BRW_NEW_VS_PROG_DATA */ |
| const struct brw_vs_prog_data *vs_prog_data = |
| brw_vs_prog_data(brw->vs.base.prog_data); |
| GLbitfield64 vs_inputs = vs_prog_data->inputs_read; |
| const unsigned char *ptr = NULL; |
| GLuint interleaved = 0; |
| unsigned int min_index = brw->vb.min_index + brw->basevertex; |
| unsigned int max_index = brw->vb.max_index + brw->basevertex; |
| unsigned i; |
| int delta, j; |
| |
| struct brw_vertex_element *upload[VERT_ATTRIB_MAX]; |
| GLuint nr_uploads = 0; |
| |
| /* _NEW_POLYGON |
| * |
| * On gen6+, edge flags don't end up in the VUE (either in or out of the |
| * VS). Instead, they're uploaded as the last vertex element, and the data |
| * is passed sideband through the fixed function units. So, we need to |
| * prepare the vertex buffer for it, but it's not present in inputs_read. |
| */ |
| if (brw->gen >= 6 && (ctx->Polygon.FrontMode != GL_FILL || |
| ctx->Polygon.BackMode != GL_FILL)) { |
| vs_inputs |= VERT_BIT_EDGEFLAG; |
| } |
| |
| if (0) |
| fprintf(stderr, "%s %d..%d\n", __func__, min_index, max_index); |
| |
| /* Accumulate the list of enabled arrays. */ |
| brw->vb.nr_enabled = 0; |
| while (vs_inputs) { |
| GLuint index = ffsll(vs_inputs) - 1; |
| struct brw_vertex_element *input = &brw->vb.inputs[index]; |
| input->is_dual_slot = brw->gen >= 8 && |
| (vs_prog_data->double_inputs_read & BITFIELD64_BIT(index)) != 0; |
| vs_inputs &= ~BITFIELD64_BIT(index); |
| brw->vb.enabled[brw->vb.nr_enabled++] = input; |
| } |
| |
| if (brw->vb.nr_enabled == 0) |
| return; |
| |
| if (brw->vb.nr_buffers) |
| return; |
| |
| /* The range of data in a given buffer represented as [min, max) */ |
| struct intel_buffer_object *enabled_buffer[VERT_ATTRIB_MAX]; |
| uint32_t buffer_range_start[VERT_ATTRIB_MAX]; |
| uint32_t buffer_range_end[VERT_ATTRIB_MAX]; |
| |
| for (i = j = 0; i < brw->vb.nr_enabled; i++) { |
| struct brw_vertex_element *input = brw->vb.enabled[i]; |
| const struct gl_vertex_array *glarray = input->glarray; |
| |
| if (_mesa_is_bufferobj(glarray->BufferObj)) { |
| struct intel_buffer_object *intel_buffer = |
| intel_buffer_object(glarray->BufferObj); |
| |
| const uint32_t offset = (uintptr_t)glarray->Ptr; |
| |
| /* Start with the worst case */ |
| uint32_t start = 0; |
| uint32_t range = intel_buffer->Base.Size; |
| if (glarray->InstanceDivisor) { |
| if (brw->num_instances) { |
| start = offset + glarray->StrideB * brw->baseinstance; |
| range = (glarray->StrideB * ((brw->num_instances - 1) / |
| glarray->InstanceDivisor) + |
| glarray->_ElementSize); |
| } |
| } else { |
| if (brw->vb.index_bounds_valid) { |
| start = offset + min_index * glarray->StrideB; |
| range = (glarray->StrideB * (max_index - min_index) + |
| glarray->_ElementSize); |
| } |
| } |
| |
| /* If we have a VB set to be uploaded for this buffer object |
| * already, reuse that VB state so that we emit fewer |
| * relocations. |
| */ |
| unsigned k; |
| for (k = 0; k < i; k++) { |
| const struct gl_vertex_array *other = brw->vb.enabled[k]->glarray; |
| if (glarray->BufferObj == other->BufferObj && |
| glarray->StrideB == other->StrideB && |
| glarray->InstanceDivisor == other->InstanceDivisor && |
| (uintptr_t)(glarray->Ptr - other->Ptr) < glarray->StrideB) |
| { |
| input->buffer = brw->vb.enabled[k]->buffer; |
| input->offset = glarray->Ptr - other->Ptr; |
| |
| buffer_range_start[input->buffer] = |
| MIN2(buffer_range_start[input->buffer], start); |
| buffer_range_end[input->buffer] = |
| MAX2(buffer_range_end[input->buffer], start + range); |
| break; |
| } |
| } |
| if (k == i) { |
| struct brw_vertex_buffer *buffer = &brw->vb.buffers[j]; |
| |
| /* Named buffer object: Just reference its contents directly. */ |
| buffer->offset = offset; |
| buffer->stride = glarray->StrideB; |
| buffer->step_rate = glarray->InstanceDivisor; |
| buffer->size = glarray->BufferObj->Size - offset; |
| |
| enabled_buffer[j] = intel_buffer; |
| buffer_range_start[j] = start; |
| buffer_range_end[j] = start + range; |
| |
| input->buffer = j++; |
| input->offset = 0; |
| } |
| } else { |
| /* Queue the buffer object up to be uploaded in the next pass, |
| * when we've decided if we're doing interleaved or not. |
| */ |
| if (nr_uploads == 0) { |
| interleaved = glarray->StrideB; |
| ptr = glarray->Ptr; |
| } |
| else if (interleaved != glarray->StrideB || |
| glarray->Ptr < ptr || |
| (uintptr_t)(glarray->Ptr - ptr) + glarray->_ElementSize > interleaved) |
| { |
| /* If our stride is different from the first attribute's stride, |
| * or if the first attribute's stride didn't cover our element, |
| * disable the interleaved upload optimization. The second case |
| * can most commonly occur in cases where there is a single vertex |
| * and, for example, the data is stored on the application's |
| * stack. |
| * |
| * NOTE: This will also disable the optimization in cases where |
| * the data is in a different order than the array indices. |
| * Something like: |
| * |
| * float data[...]; |
| * glVertexAttribPointer(0, 4, GL_FLOAT, 32, &data[4]); |
| * glVertexAttribPointer(1, 4, GL_FLOAT, 32, &data[0]); |
| */ |
| interleaved = 0; |
| } |
| |
| upload[nr_uploads++] = input; |
| } |
| } |
| |
| /* Now that we've set up all of the buffers, we walk through and reference |
| * each of them. We do this late so that we get the right size in each |
| * buffer and don't reference too little data. |
| */ |
| for (i = 0; i < j; i++) { |
| struct brw_vertex_buffer *buffer = &brw->vb.buffers[i]; |
| if (buffer->bo) |
| continue; |
| |
| const uint32_t start = buffer_range_start[i]; |
| const uint32_t range = buffer_range_end[i] - buffer_range_start[i]; |
| |
| buffer->bo = intel_bufferobj_buffer(brw, enabled_buffer[i], start, range); |
| drm_intel_bo_reference(buffer->bo); |
| } |
| |
| /* If we need to upload all the arrays, then we can trim those arrays to |
| * only the used elements [min_index, max_index] so long as we adjust all |
| * the values used in the 3DPRIMITIVE i.e. by setting the vertex bias. |
| */ |
| brw->vb.start_vertex_bias = 0; |
| delta = min_index; |
| if (nr_uploads == brw->vb.nr_enabled) { |
| brw->vb.start_vertex_bias = -delta; |
| delta = 0; |
| } |
| |
| /* Handle any arrays to be uploaded. */ |
| if (nr_uploads > 1) { |
| if (interleaved) { |
| struct brw_vertex_buffer *buffer = &brw->vb.buffers[j]; |
| /* 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], min_index, max_index, |
| buffer, interleaved); |
| buffer->offset -= delta * interleaved; |
| buffer->size += delta * interleaved; |
| |
| for (i = 0; i < nr_uploads; i++) { |
| /* Then, just point upload[i] at upload[0]'s buffer. */ |
| upload[i]->offset = |
| ((const unsigned char *)upload[i]->glarray->Ptr - ptr); |
| upload[i]->buffer = j; |
| } |
| j++; |
| |
| nr_uploads = 0; |
| } |
| } |
| /* Upload non-interleaved arrays */ |
| for (i = 0; i < nr_uploads; i++) { |
| struct brw_vertex_buffer *buffer = &brw->vb.buffers[j]; |
| if (upload[i]->glarray->InstanceDivisor == 0) { |
| copy_array_to_vbo_array(brw, upload[i], min_index, max_index, |
| buffer, upload[i]->glarray->_ElementSize); |
| } else { |
| /* This is an instanced attribute, since its InstanceDivisor |
| * is not zero. Therefore, its data will be stepped after the |
| * instanced draw has been run InstanceDivisor times. |
| */ |
| uint32_t instanced_attr_max_index = |
| (brw->num_instances - 1) / upload[i]->glarray->InstanceDivisor; |
| copy_array_to_vbo_array(brw, upload[i], 0, instanced_attr_max_index, |
| buffer, upload[i]->glarray->_ElementSize); |
| } |
| buffer->offset -= delta * buffer->stride; |
| buffer->size += delta * buffer->stride; |
| buffer->step_rate = upload[i]->glarray->InstanceDivisor; |
| upload[i]->buffer = j++; |
| upload[i]->offset = 0; |
| } |
| |
| brw->vb.nr_buffers = j; |
| } |
| |
| void |
| brw_prepare_shader_draw_parameters(struct brw_context *brw) |
| { |
| const struct brw_vs_prog_data *vs_prog_data = |
| brw_vs_prog_data(brw->vs.base.prog_data); |
| |
| /* For non-indirect draws, upload gl_BaseVertex. */ |
| if ((vs_prog_data->uses_basevertex || vs_prog_data->uses_baseinstance) && |
| brw->draw.draw_params_bo == NULL) { |
| intel_upload_data(brw, &brw->draw.params, sizeof(brw->draw.params), 4, |
| &brw->draw.draw_params_bo, |
| &brw->draw.draw_params_offset); |
| } |
| |
| if (vs_prog_data->uses_drawid) { |
| intel_upload_data(brw, &brw->draw.gl_drawid, sizeof(brw->draw.gl_drawid), 4, |
| &brw->draw.draw_id_bo, |
| &brw->draw.draw_id_offset); |
| } |
| } |
| |
| /** |
| * Emit a VERTEX_BUFFER_STATE entry (part of 3DSTATE_VERTEX_BUFFERS). |
| */ |
| uint32_t * |
| brw_emit_vertex_buffer_state(struct brw_context *brw, |
| unsigned buffer_nr, |
| drm_intel_bo *bo, |
| unsigned start_offset, |
| unsigned end_offset, |
| unsigned stride, |
| unsigned step_rate, |
| uint32_t *__map) |
| { |
| struct gl_context *ctx = &brw->ctx; |
| uint32_t dw0; |
| |
| if (brw->gen >= 8) { |
| dw0 = buffer_nr << GEN6_VB0_INDEX_SHIFT; |
| } else if (brw->gen >= 6) { |
| dw0 = (buffer_nr << GEN6_VB0_INDEX_SHIFT) | |
| (step_rate ? GEN6_VB0_ACCESS_INSTANCEDATA |
| : GEN6_VB0_ACCESS_VERTEXDATA); |
| } else { |
| dw0 = (buffer_nr << BRW_VB0_INDEX_SHIFT) | |
| (step_rate ? BRW_VB0_ACCESS_INSTANCEDATA |
| : BRW_VB0_ACCESS_VERTEXDATA); |
| } |
| |
| if (brw->gen >= 7) |
| dw0 |= GEN7_VB0_ADDRESS_MODIFYENABLE; |
| |
| switch (brw->gen) { |
| case 7: |
| dw0 |= GEN7_MOCS_L3 << 16; |
| break; |
| case 8: |
| dw0 |= BDW_MOCS_WB << 16; |
| break; |
| case 9: |
| dw0 |= SKL_MOCS_WB << 16; |
| break; |
| } |
| |
| WARN_ONCE(stride >= (brw->gen >= 5 ? 2048 : 2047), |
| "VBO stride %d too large, bad rendering may occur\n", |
| stride); |
| OUT_BATCH(dw0 | (stride << BRW_VB0_PITCH_SHIFT)); |
| if (brw->gen >= 8) { |
| OUT_RELOC64(bo, I915_GEM_DOMAIN_VERTEX, 0, start_offset); |
| /* From the BSpec: 3D Pipeline Stages - 3D Pipeline Geometry - |
| * Vertex Fetch (VF) Stage - State |
| * |
| * Instead of "VBState.StartingBufferAddress + VBState.MaxIndex x |
| * VBState.BufferPitch", the address of the byte immediately beyond the |
| * last valid byte of the buffer is determined by |
| * "VBState.StartingBufferAddress + VBState.BufferSize". |
| */ |
| OUT_BATCH(end_offset - start_offset); |
| } else if (brw->gen >= 5) { |
| OUT_RELOC(bo, I915_GEM_DOMAIN_VERTEX, 0, start_offset); |
| /* From the BSpec: 3D Pipeline Stages - 3D Pipeline Geometry - |
| * Vertex Fetch (VF) Stage - State |
| * |
| * Instead of "VBState.StartingBufferAddress + VBState.MaxIndex x |
| * VBState.BufferPitch", the address of the byte immediately beyond the |
| * last valid byte of the buffer is determined by |
| * "VBState.EndAddress + 1". |
| */ |
| OUT_RELOC(bo, I915_GEM_DOMAIN_VERTEX, 0, end_offset - 1); |
| OUT_BATCH(step_rate); |
| } else { |
| OUT_RELOC(bo, I915_GEM_DOMAIN_VERTEX, 0, start_offset); |
| OUT_BATCH(0); |
| OUT_BATCH(step_rate); |
| } |
| |
| return __map; |
| } |
| |
| static void |
| brw_emit_vertices(struct brw_context *brw) |
| { |
| GLuint i; |
| |
| brw_prepare_vertices(brw); |
| brw_prepare_shader_draw_parameters(brw); |
| |
| brw_emit_query_begin(brw); |
| |
| const struct brw_vs_prog_data *vs_prog_data = |
| brw_vs_prog_data(brw->vs.base.prog_data); |
| |
| unsigned nr_elements = brw->vb.nr_enabled; |
| if (vs_prog_data->uses_vertexid || vs_prog_data->uses_instanceid || |
| vs_prog_data->uses_basevertex || vs_prog_data->uses_baseinstance) |
| ++nr_elements; |
| if (vs_prog_data->uses_drawid) |
| nr_elements++; |
| |
| /* 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 (nr_elements == 0) { |
| BEGIN_BATCH(3); |
| OUT_BATCH((_3DSTATE_VERTEX_ELEMENTS << 16) | 1); |
| if (brw->gen >= 6) { |
| OUT_BATCH((0 << GEN6_VE0_INDEX_SHIFT) | |
| GEN6_VE0_VALID | |
| (BRW_SURFACEFORMAT_R32G32B32A32_FLOAT << BRW_VE0_FORMAT_SHIFT) | |
| (0 << BRW_VE0_SRC_OFFSET_SHIFT)); |
| } else { |
| 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. |
| */ |
| |
| const bool uses_draw_params = |
| vs_prog_data->uses_basevertex || |
| vs_prog_data->uses_baseinstance; |
| const unsigned nr_buffers = brw->vb.nr_buffers + |
| uses_draw_params + vs_prog_data->uses_drawid; |
| |
| if (nr_buffers) { |
| if (brw->gen >= 6) { |
| assert(nr_buffers <= 33); |
| } else { |
| assert(nr_buffers <= 17); |
| } |
| |
| BEGIN_BATCH(1 + 4 * nr_buffers); |
| OUT_BATCH((_3DSTATE_VERTEX_BUFFERS << 16) | (4 * nr_buffers - 1)); |
| for (i = 0; i < brw->vb.nr_buffers; i++) { |
| struct brw_vertex_buffer *buffer = &brw->vb.buffers[i]; |
| /* Prior to Haswell and Bay Trail we have to use 4-component formats |
| * to fake 3-component ones. In particular, we do this for |
| * half-float and 8 and 16-bit integer formats. This means that the |
| * vertex element may poke over the end of the buffer by 2 bytes. |
| */ |
| unsigned padding = |
| (brw->gen <= 7 && !brw->is_baytrail && !brw->is_haswell) * 2; |
| EMIT_VERTEX_BUFFER_STATE(brw, i, buffer->bo, buffer->offset, |
| buffer->offset + buffer->size + padding, |
| buffer->stride, buffer->step_rate); |
| |
| } |
| |
| if (uses_draw_params) { |
| EMIT_VERTEX_BUFFER_STATE(brw, brw->vb.nr_buffers, |
| brw->draw.draw_params_bo, |
| brw->draw.draw_params_offset, |
| brw->draw.draw_params_bo->size, |
| 0, /* stride */ |
| 0); /* step rate */ |
| } |
| |
| if (vs_prog_data->uses_drawid) { |
| EMIT_VERTEX_BUFFER_STATE(brw, brw->vb.nr_buffers + 1, |
| brw->draw.draw_id_bo, |
| brw->draw.draw_id_offset, |
| brw->draw.draw_id_bo->size, |
| 0, /* stride */ |
| 0); /* step rate */ |
| } |
| |
| ADVANCE_BATCH(); |
| } |
| |
| /* The hardware allows one more VERTEX_ELEMENTS than VERTEX_BUFFERS, presumably |
| * for VertexID/InstanceID. |
| */ |
| if (brw->gen >= 6) { |
| assert(nr_elements <= 34); |
| } else { |
| assert(nr_elements <= 18); |
| } |
| |
| struct brw_vertex_element *gen6_edgeflag_input = NULL; |
| |
| BEGIN_BATCH(1 + nr_elements * 2); |
| OUT_BATCH((_3DSTATE_VERTEX_ELEMENTS << 16) | (2 * nr_elements - 1)); |
| for (i = 0; i < brw->vb.nr_enabled; i++) { |
| struct brw_vertex_element *input = brw->vb.enabled[i]; |
| uint32_t format = brw_get_vertex_surface_type(brw, input->glarray); |
| 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; |
| |
| if (input == &brw->vb.inputs[VERT_ATTRIB_EDGEFLAG]) { |
| /* Gen6+ passes edgeflag as sideband along with the vertex, instead |
| * of in the VUE. We have to upload it sideband as the last vertex |
| * element according to the B-Spec. |
| */ |
| if (brw->gen >= 6) { |
| gen6_edgeflag_input = input; |
| continue; |
| } |
| } |
| |
| 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 = input->glarray->Integer ? BRW_VE1_COMPONENT_STORE_1_INT |
| : BRW_VE1_COMPONENT_STORE_1_FLT; |
| break; |
| } |
| |
| if (brw->gen >= 6) { |
| OUT_BATCH((input->buffer << GEN6_VE0_INDEX_SHIFT) | |
| GEN6_VE0_VALID | |
| (format << BRW_VE0_FORMAT_SHIFT) | |
| (input->offset << BRW_VE0_SRC_OFFSET_SHIFT)); |
| } else { |
| OUT_BATCH((input->buffer << BRW_VE0_INDEX_SHIFT) | |
| BRW_VE0_VALID | |
| (format << BRW_VE0_FORMAT_SHIFT) | |
| (input->offset << BRW_VE0_SRC_OFFSET_SHIFT)); |
| } |
| |
| if (brw->gen >= 5) |
| 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)); |
| } |
| |
| if (vs_prog_data->uses_vertexid || vs_prog_data->uses_instanceid || |
| vs_prog_data->uses_basevertex || vs_prog_data->uses_baseinstance) { |
| uint32_t dw0 = 0, dw1 = 0; |
| uint32_t comp0 = BRW_VE1_COMPONENT_STORE_0; |
| uint32_t comp1 = BRW_VE1_COMPONENT_STORE_0; |
| uint32_t comp2 = BRW_VE1_COMPONENT_STORE_0; |
| uint32_t comp3 = BRW_VE1_COMPONENT_STORE_0; |
| |
| if (vs_prog_data->uses_basevertex) |
| comp0 = BRW_VE1_COMPONENT_STORE_SRC; |
| |
| if (vs_prog_data->uses_baseinstance) |
| comp1 = BRW_VE1_COMPONENT_STORE_SRC; |
| |
| if (vs_prog_data->uses_vertexid) |
| comp2 = BRW_VE1_COMPONENT_STORE_VID; |
| |
| if (vs_prog_data->uses_instanceid) |
| comp3 = BRW_VE1_COMPONENT_STORE_IID; |
| |
| dw1 = (comp0 << BRW_VE1_COMPONENT_0_SHIFT) | |
| (comp1 << BRW_VE1_COMPONENT_1_SHIFT) | |
| (comp2 << BRW_VE1_COMPONENT_2_SHIFT) | |
| (comp3 << BRW_VE1_COMPONENT_3_SHIFT); |
| |
| if (brw->gen >= 6) { |
| dw0 |= GEN6_VE0_VALID | |
| brw->vb.nr_buffers << GEN6_VE0_INDEX_SHIFT | |
| BRW_SURFACEFORMAT_R32G32_UINT << BRW_VE0_FORMAT_SHIFT; |
| } else { |
| dw0 |= BRW_VE0_VALID | |
| brw->vb.nr_buffers << BRW_VE0_INDEX_SHIFT | |
| BRW_SURFACEFORMAT_R32G32_UINT << BRW_VE0_FORMAT_SHIFT; |
| dw1 |= (i * 4) << BRW_VE1_DST_OFFSET_SHIFT; |
| } |
| |
| /* Note that for gl_VertexID, gl_InstanceID, and gl_PrimitiveID values, |
| * the format is ignored and the value is always int. |
| */ |
| |
| OUT_BATCH(dw0); |
| OUT_BATCH(dw1); |
| } |
| |
| if (vs_prog_data->uses_drawid) { |
| uint32_t dw0 = 0, dw1 = 0; |
| |
| dw1 = (BRW_VE1_COMPONENT_STORE_SRC << 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_0 << BRW_VE1_COMPONENT_3_SHIFT); |
| |
| if (brw->gen >= 6) { |
| dw0 |= GEN6_VE0_VALID | |
| ((brw->vb.nr_buffers + 1) << GEN6_VE0_INDEX_SHIFT) | |
| (BRW_SURFACEFORMAT_R32_UINT << BRW_VE0_FORMAT_SHIFT); |
| } else { |
| dw0 |= BRW_VE0_VALID | |
| ((brw->vb.nr_buffers + 1) << BRW_VE0_INDEX_SHIFT) | |
| (BRW_SURFACEFORMAT_R32_UINT << BRW_VE0_FORMAT_SHIFT); |
| |
| dw1 |= (i * 4) << BRW_VE1_DST_OFFSET_SHIFT; |
| } |
| |
| OUT_BATCH(dw0); |
| OUT_BATCH(dw1); |
| } |
| |
| if (brw->gen >= 6 && gen6_edgeflag_input) { |
| uint32_t format = |
| brw_get_vertex_surface_type(brw, gen6_edgeflag_input->glarray); |
| |
| OUT_BATCH((gen6_edgeflag_input->buffer << GEN6_VE0_INDEX_SHIFT) | |
| GEN6_VE0_VALID | |
| GEN6_VE0_EDGE_FLAG_ENABLE | |
| (format << BRW_VE0_FORMAT_SHIFT) | |
| (gen6_edgeflag_input->offset << BRW_VE0_SRC_OFFSET_SHIFT)); |
| OUT_BATCH((BRW_VE1_COMPONENT_STORE_SRC << 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_0 << BRW_VE1_COMPONENT_3_SHIFT)); |
| } |
| |
| ADVANCE_BATCH(); |
| } |
| |
| const struct brw_tracked_state brw_vertices = { |
| .dirty = { |
| .mesa = _NEW_POLYGON, |
| .brw = BRW_NEW_BATCH | |
| BRW_NEW_BLORP | |
| BRW_NEW_VERTICES | |
| BRW_NEW_VS_PROG_DATA, |
| }, |
| .emit = brw_emit_vertices, |
| }; |
| |
| static void |
| brw_upload_indices(struct brw_context *brw) |
| { |
| struct gl_context *ctx = &brw->ctx; |
| const struct _mesa_index_buffer *index_buffer = brw->ib.ib; |
| GLuint ib_size; |
| drm_intel_bo *old_bo = brw->ib.bo; |
| struct gl_buffer_object *bufferobj; |
| GLuint offset; |
| GLuint ib_type_size; |
| |
| if (index_buffer == NULL) |
| return; |
| |
| ib_type_size = _mesa_sizeof_type(index_buffer->type); |
| ib_size = index_buffer->count ? ib_type_size * index_buffer->count : |
| index_buffer->obj->Size; |
| bufferobj = index_buffer->obj; |
| |
| /* Turn into a proper VBO: |
| */ |
| if (!_mesa_is_bufferobj(bufferobj)) { |
| /* Get new bufferobj, offset: |
| */ |
| intel_upload_data(brw, index_buffer->ptr, ib_size, ib_type_size, |
| &brw->ib.bo, &offset); |
| brw->ib.size = brw->ib.bo->size; |
| } else { |
| offset = (GLuint) (unsigned long) index_buffer->ptr; |
| |
| /* If the index buffer isn't aligned to its element size, we have to |
| * rebase it into a temporary. |
| */ |
| if ((ib_type_size - 1) & offset) { |
| perf_debug("copying index buffer to a temporary to work around " |
| "misaligned offset %d\n", offset); |
| |
| GLubyte *map = ctx->Driver.MapBufferRange(ctx, |
| offset, |
| ib_size, |
| GL_MAP_READ_BIT, |
| bufferobj, |
| MAP_INTERNAL); |
| |
| intel_upload_data(brw, map, ib_size, ib_type_size, |
| &brw->ib.bo, &offset); |
| brw->ib.size = brw->ib.bo->size; |
| |
| ctx->Driver.UnmapBuffer(ctx, bufferobj, MAP_INTERNAL); |
| } else { |
| drm_intel_bo *bo = |
| intel_bufferobj_buffer(brw, intel_buffer_object(bufferobj), |
| offset, ib_size); |
| if (bo != brw->ib.bo) { |
| drm_intel_bo_unreference(brw->ib.bo); |
| brw->ib.bo = bo; |
| brw->ib.size = bufferobj->Size; |
| drm_intel_bo_reference(bo); |
| } |
| } |
| } |
| |
| /* Use 3DPRIMITIVE'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; |
| |
| if (brw->ib.bo != old_bo) |
| brw->ctx.NewDriverState |= BRW_NEW_INDEX_BUFFER; |
| |
| if (index_buffer->type != brw->ib.type) { |
| brw->ib.type = index_buffer->type; |
| brw->ctx.NewDriverState |= BRW_NEW_INDEX_BUFFER; |
| } |
| } |
| |
| const struct brw_tracked_state brw_indices = { |
| .dirty = { |
| .mesa = 0, |
| .brw = BRW_NEW_BLORP | |
| BRW_NEW_INDICES, |
| }, |
| .emit = brw_upload_indices, |
| }; |
| |
| static void |
| brw_emit_index_buffer(struct brw_context *brw) |
| { |
| const struct _mesa_index_buffer *index_buffer = brw->ib.ib; |
| GLuint cut_index_setting; |
| |
| if (index_buffer == NULL) |
| return; |
| |
| if (brw->prim_restart.enable_cut_index && !brw->is_haswell) { |
| cut_index_setting = BRW_CUT_INDEX_ENABLE; |
| } else { |
| cut_index_setting = 0; |
| } |
| |
| BEGIN_BATCH(3); |
| OUT_BATCH(CMD_INDEX_BUFFER << 16 | |
| cut_index_setting | |
| brw_get_index_type(index_buffer->type) | |
| 1); |
| OUT_RELOC(brw->ib.bo, |
| I915_GEM_DOMAIN_VERTEX, 0, |
| 0); |
| OUT_RELOC(brw->ib.bo, |
| I915_GEM_DOMAIN_VERTEX, 0, |
| brw->ib.size - 1); |
| ADVANCE_BATCH(); |
| } |
| |
| const struct brw_tracked_state brw_index_buffer = { |
| .dirty = { |
| .mesa = 0, |
| .brw = BRW_NEW_BATCH | |
| BRW_NEW_BLORP | |
| BRW_NEW_INDEX_BUFFER, |
| }, |
| .emit = brw_emit_index_buffer, |
| }; |