| /************************************************************************** |
| * |
| * Copyright 2010 Christian König |
| * 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 <assert.h> |
| #include "util/format/u_format.h" |
| #include "vl_vertex_buffers.h" |
| #include "vl_types.h" |
| |
| /* vertices for a quad covering a block */ |
| static const struct vertex2f block_quad[4] = { |
| {0.0f, 0.0f}, {1.0f, 0.0f}, {1.0f, 1.0f}, {0.0f, 1.0f} |
| }; |
| |
| struct pipe_vertex_buffer |
| vl_vb_upload_quads(struct pipe_context *pipe) |
| { |
| struct pipe_vertex_buffer quad; |
| struct pipe_transfer *buf_transfer; |
| struct vertex2f *v; |
| |
| unsigned i; |
| |
| assert(pipe); |
| |
| /* create buffer */ |
| quad.stride = sizeof(struct vertex2f); |
| quad.buffer_offset = 0; |
| quad.buffer.resource = pipe_buffer_create |
| ( |
| pipe->screen, |
| PIPE_BIND_VERTEX_BUFFER, |
| PIPE_USAGE_DEFAULT, |
| sizeof(struct vertex2f) * 4 |
| ); |
| quad.is_user_buffer = false; |
| |
| if(!quad.buffer.resource) |
| return quad; |
| |
| /* and fill it */ |
| v = pipe_buffer_map |
| ( |
| pipe, |
| quad.buffer.resource, |
| PIPE_MAP_WRITE | PIPE_MAP_DISCARD_RANGE, |
| &buf_transfer |
| ); |
| |
| for (i = 0; i < 4; ++i, ++v) { |
| v->x = block_quad[i].x; |
| v->y = block_quad[i].y; |
| } |
| |
| pipe_buffer_unmap(pipe, buf_transfer); |
| |
| return quad; |
| } |
| |
| struct pipe_vertex_buffer |
| vl_vb_upload_pos(struct pipe_context *pipe, unsigned width, unsigned height) |
| { |
| struct pipe_vertex_buffer pos; |
| struct pipe_transfer *buf_transfer; |
| struct vertex2s *v; |
| |
| unsigned x, y; |
| |
| assert(pipe); |
| |
| /* create buffer */ |
| pos.stride = sizeof(struct vertex2s); |
| pos.buffer_offset = 0; |
| pos.buffer.resource = pipe_buffer_create |
| ( |
| pipe->screen, |
| PIPE_BIND_VERTEX_BUFFER, |
| PIPE_USAGE_DEFAULT, |
| sizeof(struct vertex2s) * width * height |
| ); |
| pos.is_user_buffer = false; |
| |
| if(!pos.buffer.resource) |
| return pos; |
| |
| /* and fill it */ |
| v = pipe_buffer_map |
| ( |
| pipe, |
| pos.buffer.resource, |
| PIPE_MAP_WRITE | PIPE_MAP_DISCARD_RANGE, |
| &buf_transfer |
| ); |
| |
| for ( y = 0; y < height; ++y) { |
| for ( x = 0; x < width; ++x, ++v) { |
| v->x = x; |
| v->y = y; |
| } |
| } |
| |
| pipe_buffer_unmap(pipe, buf_transfer); |
| |
| return pos; |
| } |
| |
| static struct pipe_vertex_element |
| vl_vb_get_quad_vertex_element(void) |
| { |
| struct pipe_vertex_element element; |
| |
| /* setup rectangle element */ |
| element.src_offset = 0; |
| element.instance_divisor = 0; |
| element.vertex_buffer_index = 0; |
| element.src_format = PIPE_FORMAT_R32G32_FLOAT; |
| |
| return element; |
| } |
| |
| static void |
| vl_vb_element_helper(struct pipe_vertex_element* elements, unsigned num_elements, |
| unsigned vertex_buffer_index) |
| { |
| unsigned i, offset = 0; |
| |
| assert(elements && num_elements); |
| |
| for ( i = 0; i < num_elements; ++i ) { |
| elements[i].src_offset = offset; |
| elements[i].instance_divisor = 1; |
| elements[i].vertex_buffer_index = vertex_buffer_index; |
| offset += util_format_get_blocksize(elements[i].src_format); |
| } |
| } |
| |
| void * |
| vl_vb_get_ves_ycbcr(struct pipe_context *pipe) |
| { |
| struct pipe_vertex_element vertex_elems[NUM_VS_INPUTS]; |
| |
| assert(pipe); |
| |
| memset(&vertex_elems, 0, sizeof(vertex_elems)); |
| vertex_elems[VS_I_RECT] = vl_vb_get_quad_vertex_element(); |
| |
| /* Position element */ |
| vertex_elems[VS_I_VPOS].src_format = PIPE_FORMAT_R8G8B8A8_USCALED; |
| |
| /* block num element */ |
| vertex_elems[VS_I_BLOCK_NUM].src_format = PIPE_FORMAT_R32_FLOAT; |
| |
| vl_vb_element_helper(&vertex_elems[VS_I_VPOS], 2, 1); |
| |
| return pipe->create_vertex_elements_state(pipe, 3, vertex_elems); |
| } |
| |
| void * |
| vl_vb_get_ves_mv(struct pipe_context *pipe) |
| { |
| struct pipe_vertex_element vertex_elems[NUM_VS_INPUTS]; |
| |
| assert(pipe); |
| |
| memset(&vertex_elems, 0, sizeof(vertex_elems)); |
| vertex_elems[VS_I_RECT] = vl_vb_get_quad_vertex_element(); |
| |
| /* Position element */ |
| vertex_elems[VS_I_VPOS].src_format = PIPE_FORMAT_R16G16_SSCALED; |
| |
| vl_vb_element_helper(&vertex_elems[VS_I_VPOS], 1, 1); |
| |
| /* motion vector TOP element */ |
| vertex_elems[VS_I_MV_TOP].src_format = PIPE_FORMAT_R16G16B16A16_SSCALED; |
| |
| /* motion vector BOTTOM element */ |
| vertex_elems[VS_I_MV_BOTTOM].src_format = PIPE_FORMAT_R16G16B16A16_SSCALED; |
| |
| vl_vb_element_helper(&vertex_elems[VS_I_MV_TOP], 2, 2); |
| |
| return pipe->create_vertex_elements_state(pipe, NUM_VS_INPUTS, vertex_elems); |
| } |
| |
| bool |
| vl_vb_init(struct vl_vertex_buffer *buffer, struct pipe_context *pipe, |
| unsigned width, unsigned height) |
| { |
| unsigned i, size; |
| |
| assert(buffer); |
| |
| buffer->width = width; |
| buffer->height = height; |
| |
| size = width * height; |
| |
| for (i = 0; i < VL_NUM_COMPONENTS; ++i) { |
| buffer->ycbcr[i].resource = pipe_buffer_create |
| ( |
| pipe->screen, |
| PIPE_BIND_VERTEX_BUFFER, |
| PIPE_USAGE_STREAM, |
| sizeof(struct vl_ycbcr_block) * size * 4 |
| ); |
| if (!buffer->ycbcr[i].resource) |
| goto error_ycbcr; |
| } |
| |
| for (i = 0; i < VL_MAX_REF_FRAMES; ++i) { |
| buffer->mv[i].resource = pipe_buffer_create |
| ( |
| pipe->screen, |
| PIPE_BIND_VERTEX_BUFFER, |
| PIPE_USAGE_STREAM, |
| sizeof(struct vl_motionvector) * size |
| ); |
| if (!buffer->mv[i].resource) |
| goto error_mv; |
| } |
| |
| return true; |
| |
| error_mv: |
| for (i = 0; i < VL_NUM_COMPONENTS; ++i) |
| pipe_resource_reference(&buffer->mv[i].resource, NULL); |
| |
| error_ycbcr: |
| for (i = 0; i < VL_NUM_COMPONENTS; ++i) |
| pipe_resource_reference(&buffer->ycbcr[i].resource, NULL); |
| return false; |
| } |
| |
| unsigned |
| vl_vb_attributes_per_plock(struct vl_vertex_buffer *buffer) |
| { |
| return 1; |
| } |
| |
| struct pipe_vertex_buffer |
| vl_vb_get_ycbcr(struct vl_vertex_buffer *buffer, int component) |
| { |
| struct pipe_vertex_buffer buf; |
| |
| assert(buffer); |
| |
| buf.stride = sizeof(struct vl_ycbcr_block); |
| buf.buffer_offset = 0; |
| buf.buffer.resource = buffer->ycbcr[component].resource; |
| buf.is_user_buffer = false; |
| |
| return buf; |
| } |
| |
| struct pipe_vertex_buffer |
| vl_vb_get_mv(struct vl_vertex_buffer *buffer, int motionvector) |
| { |
| struct pipe_vertex_buffer buf; |
| |
| assert(buffer); |
| |
| buf.stride = sizeof(struct vl_motionvector); |
| buf.buffer_offset = 0; |
| buf.buffer.resource = buffer->mv[motionvector].resource; |
| buf.is_user_buffer = false; |
| |
| return buf; |
| } |
| |
| void |
| vl_vb_map(struct vl_vertex_buffer *buffer, struct pipe_context *pipe) |
| { |
| unsigned i; |
| |
| assert(buffer && pipe); |
| |
| for (i = 0; i < VL_NUM_COMPONENTS; ++i) { |
| buffer->ycbcr[i].vertex_stream = pipe_buffer_map |
| ( |
| pipe, |
| buffer->ycbcr[i].resource, |
| PIPE_MAP_WRITE | PIPE_MAP_DISCARD_RANGE, |
| &buffer->ycbcr[i].transfer |
| ); |
| } |
| |
| for (i = 0; i < VL_MAX_REF_FRAMES; ++i) { |
| buffer->mv[i].vertex_stream = pipe_buffer_map |
| ( |
| pipe, |
| buffer->mv[i].resource, |
| PIPE_MAP_WRITE | PIPE_MAP_DISCARD_RANGE, |
| &buffer->mv[i].transfer |
| ); |
| } |
| |
| } |
| |
| struct vl_ycbcr_block * |
| vl_vb_get_ycbcr_stream(struct vl_vertex_buffer *buffer, int component) |
| { |
| assert(buffer); |
| assert(component < VL_NUM_COMPONENTS); |
| |
| return buffer->ycbcr[component].vertex_stream; |
| } |
| |
| unsigned |
| vl_vb_get_mv_stream_stride(struct vl_vertex_buffer *buffer) |
| { |
| assert(buffer); |
| |
| return buffer->width; |
| } |
| |
| struct vl_motionvector * |
| vl_vb_get_mv_stream(struct vl_vertex_buffer *buffer, int ref_frame) |
| { |
| assert(buffer); |
| assert(ref_frame < VL_MAX_REF_FRAMES); |
| |
| return buffer->mv[ref_frame].vertex_stream; |
| } |
| |
| void |
| vl_vb_unmap(struct vl_vertex_buffer *buffer, struct pipe_context *pipe) |
| { |
| unsigned i; |
| |
| assert(buffer && pipe); |
| |
| for (i = 0; i < VL_NUM_COMPONENTS; ++i) { |
| pipe_buffer_unmap(pipe, buffer->ycbcr[i].transfer); |
| } |
| |
| for (i = 0; i < VL_MAX_REF_FRAMES; ++i) { |
| pipe_buffer_unmap(pipe, buffer->mv[i].transfer); |
| } |
| } |
| |
| void |
| vl_vb_cleanup(struct vl_vertex_buffer *buffer) |
| { |
| unsigned i; |
| |
| assert(buffer); |
| |
| for (i = 0; i < VL_NUM_COMPONENTS; ++i) { |
| pipe_resource_reference(&buffer->ycbcr[i].resource, NULL); |
| } |
| |
| for (i = 0; i < VL_MAX_REF_FRAMES; ++i) { |
| pipe_resource_reference(&buffer->mv[i].resource, NULL); |
| } |
| } |