| 0,0 → 1,804 |
|---|
| /************************************************************************** |
| * |
| * 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, 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 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/imports.h" |
| #include "main/mtypes.h" |
| #include "main/macros.h" |
| #include "main/bufferobj.h" |
| |
| #include "intel_blit.h" |
| #include "intel_buffer_objects.h" |
| #include "intel_batchbuffer.h" |
| #include "intel_context.h" |
| #include "intel_fbo.h" |
| #include "intel_mipmap_tree.h" |
| #include "intel_regions.h" |
| |
| static GLboolean |
| intel_bufferobj_unmap(struct gl_context * ctx, struct gl_buffer_object *obj, |
| gl_map_buffer_index index); |
| |
| /** Allocates a new drm_intel_bo to store the data for the buffer object. */ |
| static void |
| intel_bufferobj_alloc_buffer(struct intel_context *intel, |
| struct intel_buffer_object *intel_obj) |
| { |
| intel_obj->buffer = drm_intel_bo_alloc(intel->bufmgr, "bufferobj", |
| intel_obj->Base.Size, 64); |
| } |
| |
| static void |
| release_buffer(struct intel_buffer_object *intel_obj) |
| { |
| drm_intel_bo_unreference(intel_obj->buffer); |
| intel_obj->buffer = NULL; |
| intel_obj->offset = 0; |
| intel_obj->source = 0; |
| } |
| |
| /** |
| * There is some duplication between mesa's bufferobjects and our |
| * bufmgr buffers. Both have an integer handle and a hashtable to |
| * lookup an opaque structure. It would be nice if the handles and |
| * internal structure where somehow shared. |
| */ |
| static struct gl_buffer_object * |
| intel_bufferobj_alloc(struct gl_context * ctx, GLuint name) |
| { |
| struct intel_buffer_object *obj = CALLOC_STRUCT(intel_buffer_object); |
| |
| _mesa_initialize_buffer_object(ctx, &obj->Base, name); |
| |
| obj->buffer = NULL; |
| |
| return &obj->Base; |
| } |
| |
| /** |
| * Deallocate/free a vertex/pixel buffer object. |
| * Called via glDeleteBuffersARB(). |
| */ |
| static void |
| intel_bufferobj_free(struct gl_context * ctx, struct gl_buffer_object *obj) |
| { |
| struct intel_buffer_object *intel_obj = intel_buffer_object(obj); |
| |
| assert(intel_obj); |
| |
| /* Buffer objects are automatically unmapped when deleting according |
| * to the spec, but Mesa doesn't do UnmapBuffer for us at context destroy |
| * (though it does if you call glDeleteBuffers) |
| */ |
| _mesa_buffer_unmap_all_mappings(ctx, obj); |
| |
| _mesa_align_free(intel_obj->sys_buffer); |
| |
| drm_intel_bo_unreference(intel_obj->buffer); |
| free(intel_obj); |
| } |
| |
| |
| |
| /** |
| * Allocate space for and store data in a buffer object. Any data that was |
| * previously stored in the buffer object is lost. If data is NULL, |
| * memory will be allocated, but no copy will occur. |
| * Called via ctx->Driver.BufferData(). |
| * \return true for success, false if out of memory |
| */ |
| static GLboolean |
| intel_bufferobj_data(struct gl_context * ctx, |
| GLenum target, |
| GLsizeiptrARB size, |
| const GLvoid * data, |
| GLenum usage, |
| GLbitfield storageFlags, |
| struct gl_buffer_object *obj) |
| { |
| struct intel_context *intel = intel_context(ctx); |
| struct intel_buffer_object *intel_obj = intel_buffer_object(obj); |
| |
| intel_obj->Base.Size = size; |
| intel_obj->Base.Usage = usage; |
| intel_obj->Base.StorageFlags = storageFlags; |
| |
| assert(!obj->Mappings[MAP_USER].Pointer); /* Mesa should have unmapped it */ |
| assert(!obj->Mappings[MAP_INTERNAL].Pointer); |
| |
| if (intel_obj->buffer != NULL) |
| release_buffer(intel_obj); |
| |
| _mesa_align_free(intel_obj->sys_buffer); |
| intel_obj->sys_buffer = NULL; |
| |
| if (size != 0) { |
| /* Stick VBOs in system memory, as we're always doing swtnl with their |
| * contents anyway. |
| */ |
| if (target == GL_ARRAY_BUFFER || target == GL_ELEMENT_ARRAY_BUFFER) { |
| intel_obj->sys_buffer = |
| _mesa_align_malloc(size, ctx->Const.MinMapBufferAlignment); |
| if (intel_obj->sys_buffer != NULL) { |
| if (data != NULL) |
| memcpy(intel_obj->sys_buffer, data, size); |
| return true; |
| } |
| } |
| |
| intel_bufferobj_alloc_buffer(intel, intel_obj); |
| if (!intel_obj->buffer) |
| return false; |
| |
| if (data != NULL) |
| drm_intel_bo_subdata(intel_obj->buffer, 0, size, data); |
| } |
| |
| return true; |
| } |
| |
| |
| /** |
| * Replace data in a subrange of buffer object. If the data range |
| * specified by size + offset extends beyond the end of the buffer or |
| * if data is NULL, no copy is performed. |
| * Called via glBufferSubDataARB(). |
| */ |
| static void |
| intel_bufferobj_subdata(struct gl_context * ctx, |
| GLintptrARB offset, |
| GLsizeiptrARB size, |
| const GLvoid * data, struct gl_buffer_object *obj) |
| { |
| struct intel_context *intel = intel_context(ctx); |
| struct intel_buffer_object *intel_obj = intel_buffer_object(obj); |
| bool busy; |
| |
| if (size == 0) |
| return; |
| |
| assert(intel_obj); |
| |
| /* If we have a single copy in system memory, update that */ |
| if (intel_obj->sys_buffer) { |
| if (intel_obj->source) |
| release_buffer(intel_obj); |
| |
| if (intel_obj->buffer == NULL) { |
| memcpy((char *)intel_obj->sys_buffer + offset, data, size); |
| return; |
| } |
| |
| _mesa_align_free(intel_obj->sys_buffer); |
| intel_obj->sys_buffer = NULL; |
| } |
| |
| /* Otherwise we need to update the copy in video memory. */ |
| busy = |
| drm_intel_bo_busy(intel_obj->buffer) || |
| drm_intel_bo_references(intel->batch.bo, intel_obj->buffer); |
| |
| if (busy) { |
| if (size == intel_obj->Base.Size) { |
| /* Replace the current busy bo with fresh data. */ |
| drm_intel_bo_unreference(intel_obj->buffer); |
| intel_bufferobj_alloc_buffer(intel, intel_obj); |
| drm_intel_bo_subdata(intel_obj->buffer, 0, size, data); |
| } else { |
| perf_debug("Using a blit copy to avoid stalling on %ldb " |
| "glBufferSubData() to a busy buffer object.\n", |
| (long)size); |
| drm_intel_bo *temp_bo = |
| drm_intel_bo_alloc(intel->bufmgr, "subdata temp", size, 64); |
| |
| drm_intel_bo_subdata(temp_bo, 0, size, data); |
| |
| intel_emit_linear_blit(intel, |
| intel_obj->buffer, offset, |
| temp_bo, 0, |
| size); |
| |
| drm_intel_bo_unreference(temp_bo); |
| } |
| } else { |
| drm_intel_bo_subdata(intel_obj->buffer, offset, size, data); |
| } |
| } |
| |
| |
| /** |
| * Called via glGetBufferSubDataARB(). |
| */ |
| static void |
| intel_bufferobj_get_subdata(struct gl_context * ctx, |
| GLintptrARB offset, |
| GLsizeiptrARB size, |
| GLvoid * data, struct gl_buffer_object *obj) |
| { |
| struct intel_buffer_object *intel_obj = intel_buffer_object(obj); |
| struct intel_context *intel = intel_context(ctx); |
| |
| assert(intel_obj); |
| if (intel_obj->sys_buffer) |
| memcpy(data, (char *)intel_obj->sys_buffer + offset, size); |
| else { |
| if (drm_intel_bo_references(intel->batch.bo, intel_obj->buffer)) { |
| intel_batchbuffer_flush(intel); |
| } |
| drm_intel_bo_get_subdata(intel_obj->buffer, offset, size, data); |
| } |
| } |
| |
| |
| |
| /** |
| * Called via glMapBufferRange and glMapBuffer |
| * |
| * The goal of this extension is to allow apps to accumulate their rendering |
| * at the same time as they accumulate their buffer object. Without it, |
| * you'd end up blocking on execution of rendering every time you mapped |
| * the buffer to put new data in. |
| * |
| * We support it in 3 ways: If unsynchronized, then don't bother |
| * flushing the batchbuffer before mapping the buffer, which can save blocking |
| * in many cases. If we would still block, and they allow the whole buffer |
| * to be invalidated, then just allocate a new buffer to replace the old one. |
| * If not, and we'd block, and they allow the subrange of the buffer to be |
| * invalidated, then we can make a new little BO, let them write into that, |
| * and blit it into the real BO at unmap time. |
| */ |
| static void * |
| intel_bufferobj_map_range(struct gl_context * ctx, |
| GLintptr offset, GLsizeiptr length, |
| GLbitfield access, struct gl_buffer_object *obj, |
| gl_map_buffer_index index) |
| { |
| struct intel_context *intel = intel_context(ctx); |
| struct intel_buffer_object *intel_obj = intel_buffer_object(obj); |
| |
| assert(intel_obj); |
| |
| /* _mesa_MapBufferRange (GL entrypoint) sets these, but the vbo module also |
| * internally uses our functions directly. |
| */ |
| obj->Mappings[index].Offset = offset; |
| obj->Mappings[index].Length = length; |
| obj->Mappings[index].AccessFlags = access; |
| |
| if (intel_obj->sys_buffer) { |
| const bool read_only = |
| (access & (GL_MAP_READ_BIT | GL_MAP_WRITE_BIT)) == GL_MAP_READ_BIT; |
| |
| if (!read_only && intel_obj->source) |
| release_buffer(intel_obj); |
| |
| if (!intel_obj->buffer || intel_obj->source) { |
| obj->Mappings[index].Pointer = intel_obj->sys_buffer + offset; |
| return obj->Mappings[index].Pointer; |
| } |
| |
| _mesa_align_free(intel_obj->sys_buffer); |
| intel_obj->sys_buffer = NULL; |
| } |
| |
| if (intel_obj->buffer == NULL) { |
| obj->Mappings[index].Pointer = NULL; |
| return NULL; |
| } |
| |
| /* If the access is synchronized (like a normal buffer mapping), then get |
| * things flushed out so the later mapping syncs appropriately through GEM. |
| * If the user doesn't care about existing buffer contents and mapping would |
| * cause us to block, then throw out the old buffer. |
| * |
| * If they set INVALIDATE_BUFFER, we can pitch the current contents to |
| * achieve the required synchronization. |
| */ |
| if (!(access & GL_MAP_UNSYNCHRONIZED_BIT)) { |
| if (drm_intel_bo_references(intel->batch.bo, intel_obj->buffer)) { |
| if (access & GL_MAP_INVALIDATE_BUFFER_BIT) { |
| drm_intel_bo_unreference(intel_obj->buffer); |
| intel_bufferobj_alloc_buffer(intel, intel_obj); |
| } else { |
| perf_debug("Stalling on the GPU for mapping a busy buffer " |
| "object\n"); |
| intel_flush(ctx); |
| } |
| } else if (drm_intel_bo_busy(intel_obj->buffer) && |
| (access & GL_MAP_INVALIDATE_BUFFER_BIT)) { |
| drm_intel_bo_unreference(intel_obj->buffer); |
| intel_bufferobj_alloc_buffer(intel, intel_obj); |
| } |
| } |
| |
| /* If the user is mapping a range of an active buffer object but |
| * doesn't require the current contents of that range, make a new |
| * BO, and we'll copy what they put in there out at unmap or |
| * FlushRange time. |
| */ |
| if ((access & GL_MAP_INVALIDATE_RANGE_BIT) && |
| drm_intel_bo_busy(intel_obj->buffer)) { |
| /* Ensure that the base alignment of the allocation meets the alignment |
| * guarantees the driver has advertised to the application. |
| */ |
| const unsigned alignment = ctx->Const.MinMapBufferAlignment; |
| const unsigned extra = (uintptr_t) offset % alignment; |
| |
| if (access & GL_MAP_FLUSH_EXPLICIT_BIT) { |
| intel_obj->range_map_buffer[index] = |
| _mesa_align_malloc(length + extra, alignment); |
| obj->Mappings[index].Pointer = |
| intel_obj->range_map_buffer[index] + extra; |
| } else { |
| intel_obj->range_map_bo[index] = drm_intel_bo_alloc(intel->bufmgr, |
| "range map", |
| length + extra, |
| alignment); |
| if (!(access & GL_MAP_READ_BIT)) { |
| drm_intel_gem_bo_map_gtt(intel_obj->range_map_bo[index]); |
| } else { |
| drm_intel_bo_map(intel_obj->range_map_bo[index], |
| (access & GL_MAP_WRITE_BIT) != 0); |
| } |
| obj->Mappings[index].Pointer = |
| intel_obj->range_map_bo[index]->virtual + extra; |
| } |
| return obj->Mappings[index].Pointer; |
| } |
| |
| if (access & GL_MAP_UNSYNCHRONIZED_BIT) |
| drm_intel_gem_bo_map_unsynchronized(intel_obj->buffer); |
| else if (!(access & GL_MAP_READ_BIT)) { |
| drm_intel_gem_bo_map_gtt(intel_obj->buffer); |
| } else { |
| drm_intel_bo_map(intel_obj->buffer, (access & GL_MAP_WRITE_BIT) != 0); |
| } |
| |
| obj->Mappings[index].Pointer = intel_obj->buffer->virtual + offset; |
| return obj->Mappings[index].Pointer; |
| } |
| |
| /* Ideally we'd use a BO to avoid taking up cache space for the temporary |
| * data, but FlushMappedBufferRange may be followed by further writes to |
| * the pointer, so we would have to re-map after emitting our blit, which |
| * would defeat the point. |
| */ |
| static void |
| intel_bufferobj_flush_mapped_range(struct gl_context *ctx, |
| GLintptr offset, GLsizeiptr length, |
| struct gl_buffer_object *obj, |
| gl_map_buffer_index index) |
| { |
| struct intel_context *intel = intel_context(ctx); |
| struct intel_buffer_object *intel_obj = intel_buffer_object(obj); |
| drm_intel_bo *temp_bo; |
| |
| /* Unless we're in the range map using a temporary system buffer, |
| * there's no work to do. |
| */ |
| if (intel_obj->range_map_buffer[index] == NULL) |
| return; |
| |
| if (length == 0) |
| return; |
| |
| temp_bo = drm_intel_bo_alloc(intel->bufmgr, "range map flush", length, 64); |
| |
| /* Use obj->Pointer instead of intel_obj->range_map_buffer because the |
| * former points to the actual mapping while the latter may be offset to |
| * meet alignment guarantees. |
| */ |
| drm_intel_bo_subdata(temp_bo, 0, length, obj->Mappings[index].Pointer); |
| |
| intel_emit_linear_blit(intel, |
| intel_obj->buffer, |
| obj->Mappings[index].Offset + offset, |
| temp_bo, 0, |
| length); |
| |
| drm_intel_bo_unreference(temp_bo); |
| } |
| |
| |
| /** |
| * Called via glUnmapBuffer(). |
| */ |
| static GLboolean |
| intel_bufferobj_unmap(struct gl_context * ctx, struct gl_buffer_object *obj, |
| gl_map_buffer_index index) |
| { |
| struct intel_context *intel = intel_context(ctx); |
| struct intel_buffer_object *intel_obj = intel_buffer_object(obj); |
| |
| assert(intel_obj); |
| assert(obj->Mappings[index].Pointer); |
| if (intel_obj->sys_buffer != NULL) { |
| /* always keep the mapping around. */ |
| } else if (intel_obj->range_map_buffer[index] != NULL) { |
| /* Since we've emitted some blits to buffers that will (likely) be used |
| * in rendering operations in other cache domains in this batch, emit a |
| * flush. Once again, we wish for a domain tracker in libdrm to cover |
| * usage inside of a batchbuffer. |
| */ |
| intel_batchbuffer_emit_mi_flush(intel); |
| _mesa_align_free(intel_obj->range_map_buffer[index]); |
| intel_obj->range_map_buffer[index] = NULL; |
| } else if (intel_obj->range_map_bo[index] != NULL) { |
| const unsigned extra = obj->Mappings[index].Pointer - |
| intel_obj->range_map_bo[index]->virtual; |
| |
| drm_intel_bo_unmap(intel_obj->range_map_bo[index]); |
| |
| intel_emit_linear_blit(intel, |
| intel_obj->buffer, obj->Mappings[index].Offset, |
| intel_obj->range_map_bo[index], extra, |
| obj->Mappings[index].Length); |
| |
| /* Since we've emitted some blits to buffers that will (likely) be used |
| * in rendering operations in other cache domains in this batch, emit a |
| * flush. Once again, we wish for a domain tracker in libdrm to cover |
| * usage inside of a batchbuffer. |
| */ |
| intel_batchbuffer_emit_mi_flush(intel); |
| |
| drm_intel_bo_unreference(intel_obj->range_map_bo[index]); |
| intel_obj->range_map_bo[index] = NULL; |
| } else if (intel_obj->buffer != NULL) { |
| drm_intel_bo_unmap(intel_obj->buffer); |
| } |
| obj->Mappings[index].Pointer = NULL; |
| obj->Mappings[index].Offset = 0; |
| obj->Mappings[index].Length = 0; |
| |
| return true; |
| } |
| |
| drm_intel_bo * |
| intel_bufferobj_buffer(struct intel_context *intel, |
| struct intel_buffer_object *intel_obj) |
| { |
| if (intel_obj->source) |
| release_buffer(intel_obj); |
| |
| if (intel_obj->buffer == NULL) { |
| intel_bufferobj_alloc_buffer(intel, intel_obj); |
| drm_intel_bo_subdata(intel_obj->buffer, |
| 0, intel_obj->Base.Size, |
| intel_obj->sys_buffer); |
| |
| _mesa_align_free(intel_obj->sys_buffer); |
| intel_obj->sys_buffer = NULL; |
| intel_obj->offset = 0; |
| } |
| |
| return intel_obj->buffer; |
| } |
| |
| #define INTEL_UPLOAD_SIZE (64*1024) |
| |
| void |
| intel_upload_finish(struct intel_context *intel) |
| { |
| if (!intel->upload.bo) |
| return; |
| |
| if (intel->upload.buffer_len) { |
| drm_intel_bo_subdata(intel->upload.bo, |
| intel->upload.buffer_offset, |
| intel->upload.buffer_len, |
| intel->upload.buffer); |
| intel->upload.buffer_len = 0; |
| } |
| |
| drm_intel_bo_unreference(intel->upload.bo); |
| intel->upload.bo = NULL; |
| } |
| |
| static void wrap_buffers(struct intel_context *intel, GLuint size) |
| { |
| intel_upload_finish(intel); |
| |
| if (size < INTEL_UPLOAD_SIZE) |
| size = INTEL_UPLOAD_SIZE; |
| |
| intel->upload.bo = drm_intel_bo_alloc(intel->bufmgr, "upload", size, 0); |
| intel->upload.offset = 0; |
| } |
| |
| void intel_upload_data(struct intel_context *intel, |
| const void *ptr, GLuint size, GLuint align, |
| drm_intel_bo **return_bo, |
| GLuint *return_offset) |
| { |
| GLuint base, delta; |
| |
| base = (intel->upload.offset + align - 1) / align * align; |
| if (intel->upload.bo == NULL || base + size > intel->upload.bo->size) { |
| wrap_buffers(intel, size); |
| base = 0; |
| } |
| |
| drm_intel_bo_reference(intel->upload.bo); |
| *return_bo = intel->upload.bo; |
| *return_offset = base; |
| |
| delta = base - intel->upload.offset; |
| if (intel->upload.buffer_len && |
| intel->upload.buffer_len + delta + size > sizeof(intel->upload.buffer)) |
| { |
| drm_intel_bo_subdata(intel->upload.bo, |
| intel->upload.buffer_offset, |
| intel->upload.buffer_len, |
| intel->upload.buffer); |
| intel->upload.buffer_len = 0; |
| } |
| |
| if (size < sizeof(intel->upload.buffer)) |
| { |
| if (intel->upload.buffer_len == 0) |
| intel->upload.buffer_offset = base; |
| else |
| intel->upload.buffer_len += delta; |
| |
| memcpy(intel->upload.buffer + intel->upload.buffer_len, ptr, size); |
| intel->upload.buffer_len += size; |
| } |
| else |
| { |
| drm_intel_bo_subdata(intel->upload.bo, base, size, ptr); |
| } |
| |
| intel->upload.offset = base + size; |
| } |
| |
| drm_intel_bo * |
| intel_bufferobj_source(struct intel_context *intel, |
| struct intel_buffer_object *intel_obj, |
| GLuint align, GLuint *offset) |
| { |
| if (intel_obj->buffer == NULL) { |
| intel_upload_data(intel, |
| intel_obj->sys_buffer, intel_obj->Base.Size, align, |
| &intel_obj->buffer, &intel_obj->offset); |
| intel_obj->source = 1; |
| } |
| |
| *offset = intel_obj->offset; |
| return intel_obj->buffer; |
| } |
| |
| static void |
| intel_bufferobj_copy_subdata(struct gl_context *ctx, |
| struct gl_buffer_object *src, |
| struct gl_buffer_object *dst, |
| GLintptr read_offset, GLintptr write_offset, |
| GLsizeiptr size) |
| { |
| struct intel_context *intel = intel_context(ctx); |
| struct intel_buffer_object *intel_src = intel_buffer_object(src); |
| struct intel_buffer_object *intel_dst = intel_buffer_object(dst); |
| drm_intel_bo *src_bo, *dst_bo; |
| GLuint src_offset; |
| |
| if (size == 0) |
| return; |
| |
| /* If we're in system memory, just map and memcpy. */ |
| if (intel_src->sys_buffer || intel_dst->sys_buffer) { |
| /* The same buffer may be used, but note that regions copied may |
| * not overlap. |
| */ |
| if (src == dst) { |
| char *ptr = intel_bufferobj_map_range(ctx, 0, dst->Size, |
| GL_MAP_READ_BIT | |
| GL_MAP_WRITE_BIT, |
| dst, MAP_INTERNAL); |
| memmove(ptr + write_offset, ptr + read_offset, size); |
| intel_bufferobj_unmap(ctx, dst, MAP_INTERNAL); |
| } else { |
| const char *src_ptr; |
| char *dst_ptr; |
| |
| src_ptr = intel_bufferobj_map_range(ctx, 0, src->Size, |
| GL_MAP_READ_BIT, src, |
| MAP_INTERNAL); |
| dst_ptr = intel_bufferobj_map_range(ctx, 0, dst->Size, |
| GL_MAP_WRITE_BIT, dst, |
| MAP_INTERNAL); |
| |
| memcpy(dst_ptr + write_offset, src_ptr + read_offset, size); |
| |
| intel_bufferobj_unmap(ctx, src, MAP_INTERNAL); |
| intel_bufferobj_unmap(ctx, dst, MAP_INTERNAL); |
| } |
| return; |
| } |
| |
| /* Otherwise, we have real BOs, so blit them. */ |
| |
| dst_bo = intel_bufferobj_buffer(intel, intel_dst); |
| src_bo = intel_bufferobj_source(intel, intel_src, 64, &src_offset); |
| |
| intel_emit_linear_blit(intel, |
| dst_bo, write_offset, |
| src_bo, read_offset + src_offset, size); |
| |
| /* Since we've emitted some blits to buffers that will (likely) be used |
| * in rendering operations in other cache domains in this batch, emit a |
| * flush. Once again, we wish for a domain tracker in libdrm to cover |
| * usage inside of a batchbuffer. |
| */ |
| intel_batchbuffer_emit_mi_flush(intel); |
| } |
| |
| static GLenum |
| intel_buffer_purgeable(drm_intel_bo *buffer) |
| { |
| int retained = 0; |
| |
| if (buffer != NULL) |
| retained = drm_intel_bo_madvise (buffer, I915_MADV_DONTNEED); |
| |
| return retained ? GL_VOLATILE_APPLE : GL_RELEASED_APPLE; |
| } |
| |
| static GLenum |
| intel_buffer_object_purgeable(struct gl_context * ctx, |
| struct gl_buffer_object *obj, |
| GLenum option) |
| { |
| struct intel_buffer_object *intel_obj = intel_buffer_object (obj); |
| |
| if (intel_obj->buffer != NULL) |
| return intel_buffer_purgeable(intel_obj->buffer); |
| |
| if (option == GL_RELEASED_APPLE) { |
| _mesa_align_free(intel_obj->sys_buffer); |
| intel_obj->sys_buffer = NULL; |
| |
| return GL_RELEASED_APPLE; |
| } else { |
| /* XXX Create the buffer and madvise(MADV_DONTNEED)? */ |
| struct intel_context *intel = intel_context(ctx); |
| drm_intel_bo *bo = intel_bufferobj_buffer(intel, intel_obj); |
| |
| return intel_buffer_purgeable(bo); |
| } |
| } |
| |
| static GLenum |
| intel_texture_object_purgeable(struct gl_context * ctx, |
| struct gl_texture_object *obj, |
| GLenum option) |
| { |
| struct intel_texture_object *intel; |
| |
| (void) ctx; |
| (void) option; |
| |
| intel = intel_texture_object(obj); |
| if (intel->mt == NULL || intel->mt->region == NULL) |
| return GL_RELEASED_APPLE; |
| |
| return intel_buffer_purgeable(intel->mt->region->bo); |
| } |
| |
| static GLenum |
| intel_render_object_purgeable(struct gl_context * ctx, |
| struct gl_renderbuffer *obj, |
| GLenum option) |
| { |
| struct intel_renderbuffer *intel; |
| |
| (void) ctx; |
| (void) option; |
| |
| intel = intel_renderbuffer(obj); |
| if (intel->mt == NULL) |
| return GL_RELEASED_APPLE; |
| |
| return intel_buffer_purgeable(intel->mt->region->bo); |
| } |
| |
| static GLenum |
| intel_buffer_unpurgeable(drm_intel_bo *buffer) |
| { |
| int retained; |
| |
| retained = 0; |
| if (buffer != NULL) |
| retained = drm_intel_bo_madvise (buffer, I915_MADV_WILLNEED); |
| |
| return retained ? GL_RETAINED_APPLE : GL_UNDEFINED_APPLE; |
| } |
| |
| static GLenum |
| intel_buffer_object_unpurgeable(struct gl_context * ctx, |
| struct gl_buffer_object *obj, |
| GLenum option) |
| { |
| (void) ctx; |
| (void) option; |
| |
| return intel_buffer_unpurgeable(intel_buffer_object (obj)->buffer); |
| } |
| |
| static GLenum |
| intel_texture_object_unpurgeable(struct gl_context * ctx, |
| struct gl_texture_object *obj, |
| GLenum option) |
| { |
| struct intel_texture_object *intel; |
| |
| (void) ctx; |
| (void) option; |
| |
| intel = intel_texture_object(obj); |
| if (intel->mt == NULL || intel->mt->region == NULL) |
| return GL_UNDEFINED_APPLE; |
| |
| return intel_buffer_unpurgeable(intel->mt->region->bo); |
| } |
| |
| static GLenum |
| intel_render_object_unpurgeable(struct gl_context * ctx, |
| struct gl_renderbuffer *obj, |
| GLenum option) |
| { |
| struct intel_renderbuffer *intel; |
| |
| (void) ctx; |
| (void) option; |
| |
| intel = intel_renderbuffer(obj); |
| if (intel->mt == NULL) |
| return GL_UNDEFINED_APPLE; |
| |
| return intel_buffer_unpurgeable(intel->mt->region->bo); |
| } |
| |
| void |
| intelInitBufferObjectFuncs(struct dd_function_table *functions) |
| { |
| functions->NewBufferObject = intel_bufferobj_alloc; |
| functions->DeleteBuffer = intel_bufferobj_free; |
| functions->BufferData = intel_bufferobj_data; |
| functions->BufferSubData = intel_bufferobj_subdata; |
| functions->GetBufferSubData = intel_bufferobj_get_subdata; |
| functions->MapBufferRange = intel_bufferobj_map_range; |
| functions->FlushMappedBufferRange = intel_bufferobj_flush_mapped_range; |
| functions->UnmapBuffer = intel_bufferobj_unmap; |
| functions->CopyBufferSubData = intel_bufferobj_copy_subdata; |
| |
| functions->BufferObjectPurgeable = intel_buffer_object_purgeable; |
| functions->TextureObjectPurgeable = intel_texture_object_purgeable; |
| functions->RenderObjectPurgeable = intel_render_object_purgeable; |
| |
| functions->BufferObjectUnpurgeable = intel_buffer_object_unpurgeable; |
| functions->TextureObjectUnpurgeable = intel_texture_object_unpurgeable; |
| functions->RenderObjectUnpurgeable = intel_render_object_unpurgeable; |
| } |