/************************************************************************** * * 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. * **************************************************************************/ #undef NDEBUG #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 half_float_types[5] = { 0, BRW_SURFACEFORMAT_R16_FLOAT, BRW_SURFACEFORMAT_R16G16_FLOAT, BRW_SURFACEFORMAT_R16G16B16A16_FLOAT, BRW_SURFACEFORMAT_R16G16B16A16_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 (unlikely(INTEL_DEBUG & DEBUG_VERTS)) 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_HALF_FLOAT: 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 (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_HALF_FLOAT: 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]; 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_HALF_FLOAT: return sizeof(GLhalfARB); 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 copy_array_to_vbo_array( struct brw_context *brw, struct brw_vertex_element *element, struct brw_vertex_buffer *buffer, GLuint dst_stride) { GLuint size = element->count * dst_stride; buffer->stride = dst_stride; if (dst_stride == element->glarray->StrideB) { intel_upload_data(&brw->intel, element->glarray->Ptr, size, &buffer->bo, &buffer->offset); } else { const unsigned char *src = element->glarray->Ptr; char *dst = intel_upload_map(&brw->intel, size, &buffer->bo, &buffer->offset); int i; for (i = 0; i < element->count; i++) { memcpy(dst, src, dst_stride); src += element->glarray->StrideB; dst += dst_stride; } } } static void brw_prepare_vertices(struct brw_context *brw) { struct gl_context *ctx = &brw->intel.ctx; struct intel_context *intel = intel_context(ctx); GLbitfield vs_inputs = brw->vs.prog_data->inputs_read; GLuint i, j; 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) 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; } if (brw->vb.nr_enabled == 0) return; if (brw->vb.nr_buffers) goto validate; /* 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 = j = 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); int k; for (k = 0; k < i; k++) { struct brw_vertex_element *other = brw->vb.enabled[k]; if (input->glarray->BufferObj == other->glarray->BufferObj && input->glarray->StrideB == other->glarray->StrideB && (uintptr_t)(input->glarray->Ptr - other->glarray->Ptr) < input->glarray->StrideB) { input->buffer = other->buffer; input->offset = input->glarray->Ptr - other->glarray->Ptr; break; } } if (k == i) { struct brw_vertex_buffer *buffer = &brw->vb.buffers[j]; /* Named buffer object: Just reference its contents directly. */ buffer->bo = intel_bufferobj_source(intel, intel_buffer, &buffer->offset); drm_intel_bo_reference(buffer->bo); buffer->offset += (uintptr_t)input->glarray->Ptr; buffer->stride = input->glarray->StrideB; input->buffer = j++; input->offset = 0; } 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 < brw->vb.buffers[input->buffer].bo->size); } else { input->count = input->glarray->StrideB ? max_index + 1 : 1; /* 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 || (uintptr_t)(input->glarray->Ptr - ptr) > interleave) { interleave = 0; } upload[nr_uploads++] = input; } } /* 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], &brw->vb.buffers[j], interleave); 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 - upload[0]->glarray->Ptr); upload[i]->buffer = j; } j++; } else { /* Upload non-interleaved arrays */ for (i = 0; i < nr_uploads; i++) { copy_array_to_vbo_array(brw, upload[i], &brw->vb.buffers[j], upload[i]->element_size); upload[i]->buffer = j++; } } brw->vb.nr_buffers = j; validate: brw_prepare_query_begin(brw); for (i = 0; i < brw->vb.nr_buffers; i++) { brw_add_validated_bo(brw, brw->vb.buffers[i].bo); } } static void brw_emit_vertices(struct brw_context *brw) { struct gl_context *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); OUT_BATCH((CMD_VERTEX_ELEMENT << 16) | 1); if (intel->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)); CACHED_BATCH(); return; } /* Now emit VB and VEP state packets. */ BEGIN_BATCH(1 + 4*brw->vb.nr_buffers); OUT_BATCH((CMD_VERTEX_BUFFER << 16) | (4*brw->vb.nr_buffers - 1)); for (i = 0; i < brw->vb.nr_buffers; i++) { struct brw_vertex_buffer *buffer = &brw->vb.buffers[i]; uint32_t dw0; if (intel->gen >= 6) { dw0 = GEN6_VB0_ACCESS_VERTEXDATA | (i << GEN6_VB0_INDEX_SHIFT); } else { dw0 = BRW_VB0_ACCESS_VERTEXDATA | (i << BRW_VB0_INDEX_SHIFT); } OUT_BATCH(dw0 | (buffer->stride << BRW_VB0_PITCH_SHIFT)); OUT_RELOC(buffer->bo, I915_GEM_DOMAIN_VERTEX, 0, buffer->offset); if (intel->gen >= 5) { OUT_RELOC(buffer->bo, I915_GEM_DOMAIN_VERTEX, 0, buffer->bo->size - 1); } else OUT_BATCH(0); OUT_BATCH(0); /* Instance data step rate */ } ADVANCE_BATCH(); BEGIN_BATCH(1 + brw->vb.nr_enabled * 2); OUT_BATCH((CMD_VERTEX_ELEMENT << 16) | (2*brw->vb.nr_enabled - 1)); 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; } if (intel->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 (intel->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)); } CACHED_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) { struct gl_context *ctx = &brw->intel.ctx; struct intel_context *intel = &brw->intel; const struct _mesa_index_buffer *index_buffer = brw->ib.ib; GLuint ib_size; drm_intel_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)) { /* Get new bufferobj, offset: */ intel_upload_data(&brw->intel, index_buffer->ptr, ib_size, &bo, &offset); brw->ib.start_vertex_offset = offset / ib_type_size; offset = 0; } 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 ((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; intel_upload_data(&brw->intel, map, ib_size, &bo, &offset); brw->ib.start_vertex_offset = offset / ib_type_size; offset = 0; ctx->Driver.UnmapBuffer(ctx, GL_ELEMENT_ARRAY_BUFFER_ARB, bufferobj); } else { /* 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; bo = intel_bufferobj_source(intel, intel_buffer_object(bufferobj), &offset); drm_intel_bo_reference(bo); } } if (brw->ib.bo != bo || brw->ib.offset != offset) { drm_intel_bo_unreference(brw->ib.bo); brw->ib.bo = bo; brw->ib.offset = offset; brw_add_validated_bo(brw, brw->ib.bo); brw->state.dirty.brw |= BRW_NEW_INDEX_BUFFER; } else { drm_intel_bo_unreference(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; BEGIN_BATCH(3); OUT_BATCH(CMD_INDEX_BUFFER << 16 | /* cut index enable << 10 */ get_index_type(index_buffer->type) << 8 | 1); 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.bo->size - 1); 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, };