| /* |
| * Copyright 2006 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 portionsalloc |
| * 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/enums.h" |
| #include "main/image.h" |
| #include "main/glformats.h" |
| #include "main/mtypes.h" |
| #include "main/condrender.h" |
| #include "main/fbobject.h" |
| #include "main/teximage.h" |
| #include "main/texobj.h" |
| #include "main/texstate.h" |
| #include "main/bufferobj.h" |
| #include "swrast/swrast.h" |
| #include "drivers/common/meta.h" |
| |
| #include "brw_context.h" |
| #include "intel_screen.h" |
| #include "intel_blit.h" |
| #include "intel_buffers.h" |
| #include "intel_fbo.h" |
| #include "intel_mipmap_tree.h" |
| #include "intel_pixel.h" |
| #include "intel_buffer_objects.h" |
| |
| #define FILE_DEBUG_FLAG DEBUG_PIXEL |
| |
| static bool |
| do_blit_drawpixels(struct gl_context * ctx, |
| GLint x, GLint y, GLsizei width, GLsizei height, |
| GLenum format, GLenum type, |
| const struct gl_pixelstore_attrib *unpack, |
| const GLvoid * pixels) |
| { |
| struct brw_context *brw = brw_context(ctx); |
| struct intel_buffer_object *src = intel_buffer_object(unpack->BufferObj); |
| GLuint src_offset; |
| struct brw_bo *src_buffer; |
| |
| DBG("%s\n", __func__); |
| |
| if (!intel_check_blit_fragment_ops(ctx, false)) |
| return false; |
| |
| if (ctx->DrawBuffer->_NumColorDrawBuffers != 1) { |
| DBG("%s: fallback due to MRT\n", __func__); |
| return false; |
| } |
| |
| intel_prepare_render(brw); |
| |
| struct gl_renderbuffer *rb = ctx->DrawBuffer->_ColorDrawBuffers[0]; |
| struct intel_renderbuffer *irb = intel_renderbuffer(rb); |
| |
| mesa_format src_format = _mesa_format_from_format_and_type(format, type); |
| if (_mesa_format_is_mesa_array_format(src_format)) |
| src_format = _mesa_format_from_array_format(src_format); |
| mesa_format dst_format = irb->mt->format; |
| |
| /* We can safely discard sRGB encode/decode for the DrawPixels interface */ |
| src_format = _mesa_get_srgb_format_linear(src_format); |
| dst_format = _mesa_get_srgb_format_linear(dst_format); |
| |
| if (!intel_miptree_blit_compatible_formats(src_format, dst_format)) { |
| DBG("%s: bad format for blit\n", __func__); |
| return false; |
| } |
| |
| if (unpack->SwapBytes || unpack->LsbFirst || |
| unpack->SkipPixels || unpack->SkipRows) { |
| DBG("%s: bad packing params\n", __func__); |
| return false; |
| } |
| |
| int src_stride = _mesa_image_row_stride(unpack, width, format, type); |
| bool src_flip = false; |
| /* Mesa flips the src_stride for unpack->Invert, but we want our mt to have |
| * a normal src_stride. |
| */ |
| if (unpack->Invert) { |
| src_stride = -src_stride; |
| src_flip = true; |
| } |
| |
| src_offset = (GLintptr)pixels; |
| src_offset += _mesa_image_offset(2, unpack, width, height, |
| format, type, 0, 0, 0); |
| |
| src_buffer = intel_bufferobj_buffer(brw, src, src_offset, |
| height * src_stride, false); |
| |
| struct intel_mipmap_tree *pbo_mt = |
| intel_miptree_create_for_bo(brw, |
| src_buffer, |
| irb->mt->format, |
| src_offset, |
| width, height, 1, |
| src_stride, |
| ISL_TILING_LINEAR, |
| MIPTREE_CREATE_DEFAULT); |
| if (!pbo_mt) |
| return false; |
| |
| if (!intel_miptree_blit(brw, |
| pbo_mt, 0, 0, |
| 0, 0, src_flip, |
| irb->mt, irb->mt_level, irb->mt_layer, |
| x, y, _mesa_is_winsys_fbo(ctx->DrawBuffer), |
| width, height, COLOR_LOGICOP_COPY)) { |
| DBG("%s: blit failed\n", __func__); |
| intel_miptree_release(&pbo_mt); |
| return false; |
| } |
| |
| intel_miptree_release(&pbo_mt); |
| |
| if (ctx->Query.CurrentOcclusionObject) |
| ctx->Query.CurrentOcclusionObject->Result += width * height; |
| |
| DBG("%s: success\n", __func__); |
| return true; |
| } |
| |
| void |
| intelDrawPixels(struct gl_context * ctx, |
| GLint x, GLint y, |
| GLsizei width, GLsizei height, |
| GLenum format, |
| GLenum type, |
| const struct gl_pixelstore_attrib *unpack, |
| const GLvoid * pixels) |
| { |
| struct brw_context *brw = brw_context(ctx); |
| |
| if (!_mesa_check_conditional_render(ctx)) |
| return; |
| |
| if (format == GL_STENCIL_INDEX) { |
| _swrast_DrawPixels(ctx, x, y, width, height, format, type, |
| unpack, pixels); |
| return; |
| } |
| |
| if (_mesa_is_bufferobj(unpack->BufferObj)) { |
| if (do_blit_drawpixels(ctx, x, y, width, height, format, type, unpack, |
| pixels)) { |
| return; |
| } |
| |
| perf_debug("%s: fallback to generic code in PBO case\n", __func__); |
| } |
| |
| _mesa_meta_DrawPixels(ctx, x, y, width, height, format, type, |
| unpack, pixels); |
| } |