638 lines
20 KiB
C
638 lines
20 KiB
C
/**************************************************************************
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*
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* Copyright 2007 Tungsten Graphics, Inc., Cedar Park, Texas.
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* All Rights Reserved.
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*
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* Permission is hereby granted, free of charge, to any person obtaining a
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* copy of this software and associated documentation files (the
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* "Software"), to deal in the Software without restriction, including
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* without limitation the rights to use, copy, modify, merge, publish,
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* distribute, sub license, and/or sell copies of the Software, and to
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* permit persons to whom the Software is furnished to do so, subject to
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* the following conditions:
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*
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* The above copyright notice and this permission notice (including the
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* next paragraph) shall be included in all copies or substantial portions
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* of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
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* OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
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* IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR
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* ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
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* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
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* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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*
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**************************************************************************/
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/*
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* Authors:
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* Keith Whitwell <keith@tungstengraphics.com>
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*/
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#include "main/imports.h"
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#include "main/image.h"
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#include "vbo/vbo.h"
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#include "st_atom.h"
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#include "st_context.h"
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#include "st_cb_bufferobjects.h"
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#include "st_draw.h"
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#include "st_program.h"
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#include "pipe/p_context.h"
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#include "pipe/p_defines.h"
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#include "pipe/p_winsys.h"
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#include "pipe/p_inlines.h"
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#include "draw/draw_private.h"
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#include "draw/draw_context.h"
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static GLuint double_types[4] = {
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PIPE_FORMAT_R64_FLOAT,
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PIPE_FORMAT_R64G64_FLOAT,
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PIPE_FORMAT_R64G64B64_FLOAT,
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PIPE_FORMAT_R64G64B64A64_FLOAT
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};
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static GLuint float_types[4] = {
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PIPE_FORMAT_R32_FLOAT,
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PIPE_FORMAT_R32G32_FLOAT,
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PIPE_FORMAT_R32G32B32_FLOAT,
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PIPE_FORMAT_R32G32B32A32_FLOAT
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};
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static GLuint uint_types_norm[4] = {
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PIPE_FORMAT_R32_UNORM,
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PIPE_FORMAT_R32G32_UNORM,
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PIPE_FORMAT_R32G32B32_UNORM,
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PIPE_FORMAT_R32G32B32A32_UNORM
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};
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static GLuint uint_types_scale[4] = {
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PIPE_FORMAT_R32_USCALED,
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PIPE_FORMAT_R32G32_USCALED,
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PIPE_FORMAT_R32G32B32_USCALED,
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PIPE_FORMAT_R32G32B32A32_USCALED
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};
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static GLuint int_types_norm[4] = {
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PIPE_FORMAT_R32_SNORM,
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PIPE_FORMAT_R32G32_SNORM,
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PIPE_FORMAT_R32G32B32_SNORM,
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PIPE_FORMAT_R32G32B32A32_SNORM
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};
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static GLuint int_types_scale[4] = {
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PIPE_FORMAT_R32_SSCALED,
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PIPE_FORMAT_R32G32_SSCALED,
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PIPE_FORMAT_R32G32B32_SSCALED,
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PIPE_FORMAT_R32G32B32A32_SSCALED
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};
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static GLuint ushort_types_norm[4] = {
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PIPE_FORMAT_R16_UNORM,
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PIPE_FORMAT_R16G16_UNORM,
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PIPE_FORMAT_R16G16B16_UNORM,
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PIPE_FORMAT_R16G16B16A16_UNORM
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};
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static GLuint ushort_types_scale[4] = {
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PIPE_FORMAT_R16_USCALED,
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PIPE_FORMAT_R16G16_USCALED,
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PIPE_FORMAT_R16G16B16_USCALED,
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PIPE_FORMAT_R16G16B16A16_USCALED
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};
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static GLuint short_types_norm[4] = {
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PIPE_FORMAT_R16_SNORM,
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PIPE_FORMAT_R16G16_SNORM,
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PIPE_FORMAT_R16G16B16_SNORM,
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PIPE_FORMAT_R16G16B16A16_SNORM
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};
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static GLuint short_types_scale[4] = {
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PIPE_FORMAT_R16_SSCALED,
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PIPE_FORMAT_R16G16_SSCALED,
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PIPE_FORMAT_R16G16B16_SSCALED,
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PIPE_FORMAT_R16G16B16A16_SSCALED
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};
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static GLuint ubyte_types_norm[4] = {
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PIPE_FORMAT_R8_UNORM,
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PIPE_FORMAT_R8G8_UNORM,
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PIPE_FORMAT_R8G8B8_UNORM,
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PIPE_FORMAT_R8G8B8A8_UNORM
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};
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static GLuint ubyte_types_scale[4] = {
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PIPE_FORMAT_R8_USCALED,
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PIPE_FORMAT_R8G8_USCALED,
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PIPE_FORMAT_R8G8B8_USCALED,
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PIPE_FORMAT_R8G8B8A8_USCALED
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};
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static GLuint byte_types_norm[4] = {
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PIPE_FORMAT_R8_SNORM,
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PIPE_FORMAT_R8G8_SNORM,
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PIPE_FORMAT_R8G8B8_SNORM,
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PIPE_FORMAT_R8G8B8A8_SNORM
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};
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static GLuint byte_types_scale[4] = {
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PIPE_FORMAT_R8_SSCALED,
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PIPE_FORMAT_R8G8_SSCALED,
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PIPE_FORMAT_R8G8B8_SSCALED,
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PIPE_FORMAT_R8G8B8A8_SSCALED
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};
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/**
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* Return a PIPE_FORMAT_x for the given GL datatype and size.
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*/
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static GLuint
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pipe_vertex_format(GLenum type, GLuint size, GLboolean normalized)
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{
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assert(type >= GL_BYTE);
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assert(type <= GL_DOUBLE);
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assert(size >= 1);
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assert(size <= 4);
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if (normalized) {
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switch (type) {
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case GL_DOUBLE: return double_types[size-1];
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case GL_FLOAT: return float_types[size-1];
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case GL_INT: return int_types_norm[size-1];
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case GL_SHORT: return short_types_norm[size-1];
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case GL_BYTE: return byte_types_norm[size-1];
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case GL_UNSIGNED_INT: return uint_types_norm[size-1];
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case GL_UNSIGNED_SHORT: return ushort_types_norm[size-1];
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case GL_UNSIGNED_BYTE: return ubyte_types_norm[size-1];
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default: assert(0); return 0;
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}
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}
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else {
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switch (type) {
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case GL_DOUBLE: return double_types[size-1];
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case GL_FLOAT: return float_types[size-1];
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case GL_INT: return int_types_scale[size-1];
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case GL_SHORT: return short_types_scale[size-1];
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case GL_BYTE: return byte_types_scale[size-1];
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case GL_UNSIGNED_INT: return uint_types_scale[size-1];
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case GL_UNSIGNED_SHORT: return ushort_types_scale[size-1];
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case GL_UNSIGNED_BYTE: return ubyte_types_scale[size-1];
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default: assert(0); return 0;
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}
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}
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return 0; /* silence compiler warning */
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}
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/**
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* This function gets plugged into the VBO module and is called when
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* we have something to render.
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* Basically, translate the information into the format expected by pipe.
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*/
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void
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st_draw_vbo(GLcontext *ctx,
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const struct gl_client_array **arrays,
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const struct _mesa_prim *prims,
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GLuint nr_prims,
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const struct _mesa_index_buffer *ib,
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GLuint min_index,
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GLuint max_index)
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{
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struct pipe_context *pipe = ctx->st->pipe;
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struct pipe_winsys *winsys = pipe->winsys;
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const struct st_vertex_program *vp;
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const struct pipe_shader_state *vs;
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struct pipe_vertex_buffer vbuffer[PIPE_MAX_SHADER_INPUTS];
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GLuint attr;
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/* sanity check for pointer arithmetic below */
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assert(sizeof(arrays[0]->Ptr[0]) == 1);
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st_validate_state(ctx->st);
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/* must get these after state validation! */
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vp = ctx->st->vp;
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vs = &ctx->st->vp->state;
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/* loop over TGSI shader inputs to determine vertex buffer
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* and attribute info
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*/
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for (attr = 0; attr < /*vs*/vp->num_inputs; attr++) {
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const GLuint mesaAttr = vp->index_to_input[attr];
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struct gl_buffer_object *bufobj = arrays[mesaAttr]->BufferObj;
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struct pipe_vertex_element velement;
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if (bufobj && bufobj->Name) {
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/* Attribute data is in a VBO.
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* Recall that for VBOs, the gl_client_array->Ptr field is
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* really an offset from the start of the VBO, not a pointer.
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*/
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struct st_buffer_object *stobj = st_buffer_object(bufobj);
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assert(stobj->buffer);
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vbuffer[attr].buffer = NULL;
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pipe_buffer_reference(winsys, &vbuffer[attr].buffer, stobj->buffer);
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vbuffer[attr].buffer_offset = (unsigned) arrays[0]->Ptr;/* in bytes */
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velement.src_offset = arrays[mesaAttr]->Ptr - arrays[0]->Ptr;
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assert(velement.src_offset <= 2048); /* 11-bit field */
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}
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else {
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/* attribute data is in user-space memory, not a VBO */
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uint bytes;
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if (!arrays[mesaAttr]->StrideB) {
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bytes = arrays[mesaAttr]->Size
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* _mesa_sizeof_type(arrays[mesaAttr]->Type);
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} else {
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bytes = arrays[mesaAttr]->StrideB * (max_index + 1);
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}
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/* wrap user data */
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vbuffer[attr].buffer
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= winsys->user_buffer_create(winsys,
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(void *) arrays[mesaAttr]->Ptr,
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bytes);
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vbuffer[attr].buffer_offset = 0;
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velement.src_offset = 0;
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}
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/* common-case setup */
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vbuffer[attr].pitch = arrays[mesaAttr]->StrideB; /* in bytes */
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vbuffer[attr].max_index = max_index;
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velement.vertex_buffer_index = attr;
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velement.nr_components = arrays[mesaAttr]->Size;
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velement.src_format = pipe_vertex_format(arrays[mesaAttr]->Type,
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arrays[mesaAttr]->Size,
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arrays[mesaAttr]->Normalized);
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assert(velement.src_format);
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/* tell pipe about this attribute */
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pipe->set_vertex_buffer(pipe, attr, &vbuffer[attr]);
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pipe->set_vertex_element(pipe, attr, &velement);
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}
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/* do actual drawing */
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if (ib) {
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/* indexed primitive */
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struct gl_buffer_object *bufobj = ib->obj;
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struct pipe_buffer *indexBuf = NULL;
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unsigned indexSize, indexOffset, i;
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switch (ib->type) {
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case GL_UNSIGNED_INT:
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indexSize = 4;
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break;
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case GL_UNSIGNED_SHORT:
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indexSize = 2;
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break;
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case GL_UNSIGNED_BYTE:
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indexSize = 1;
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break;
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default:
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assert(0);
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return;
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}
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/* get/create the index buffer object */
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if (bufobj && bufobj->Name) {
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/* elements/indexes are in a real VBO */
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struct st_buffer_object *stobj = st_buffer_object(bufobj);
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pipe_buffer_reference(winsys, &indexBuf, stobj->buffer);
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indexOffset = (unsigned) ib->ptr / indexSize;
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}
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else {
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/* element/indicies are in user space memory */
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indexBuf = winsys->user_buffer_create(winsys,
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(void *) ib->ptr,
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ib->count * indexSize);
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indexOffset = 0;
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}
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/* draw */
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for (i = 0; i < nr_prims; i++) {
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pipe->draw_elements(pipe, indexBuf, indexSize,
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prims[i].mode,
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prims[i].start + indexOffset, prims[i].count);
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}
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pipe_buffer_reference(winsys, &indexBuf, NULL);
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}
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else {
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/* non-indexed */
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GLuint i;
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for (i = 0; i < nr_prims; i++) {
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pipe->draw_arrays(pipe, prims[i].mode, prims[i].start, prims[i].count);
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}
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}
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/* unreference buffers (frees wrapped user-space buffer objects) */
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for (attr = 0; attr < /*vs*/vp->num_inputs; attr++) {
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pipe_buffer_reference(winsys, &vbuffer[attr].buffer, NULL);
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assert(!vbuffer[attr].buffer);
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pipe->set_vertex_buffer(pipe, attr, &vbuffer[attr]);
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}
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}
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/**
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* Utility function for drawing simple primitives (such as quads for
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* glClear and glDrawPixels). Coordinates are in screen space.
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* \param mode one of PIPE_PRIM_x
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* \param numVertex number of vertices
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* \param verts vertex data (all attributes are float[4])
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* \param numAttribs number of attributes per vertex
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*/
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void
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st_draw_vertices(GLcontext *ctx, unsigned prim,
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unsigned numVertex, float *verts,
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unsigned numAttribs,
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GLboolean inClipCoords)
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{
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const float width = ctx->DrawBuffer->Width;
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const float height = ctx->DrawBuffer->Height;
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const unsigned vertex_bytes = numVertex * numAttribs * 4 * sizeof(float);
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struct pipe_context *pipe = ctx->st->pipe;
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struct pipe_buffer *vbuf;
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struct pipe_vertex_buffer vbuffer;
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struct pipe_vertex_element velement;
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unsigned i;
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assert(numAttribs > 0);
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if (!inClipCoords) {
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/* convert to clip coords */
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for (i = 0; i < numVertex; i++) {
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float x = verts[i * numAttribs * 4 + 0];
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float y = verts[i * numAttribs * 4 + 1];
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x = x / width * 2.0 - 1.0;
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y = y / height * 2.0 - 1.0;
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verts[i * numAttribs * 4 + 0] = x;
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verts[i * numAttribs * 4 + 1] = y;
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}
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}
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/* XXX create one-time */
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vbuf = pipe->winsys->buffer_create(pipe->winsys, 32,
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PIPE_BUFFER_USAGE_VERTEX, vertex_bytes);
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assert(vbuf);
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memcpy(pipe->winsys->buffer_map(pipe->winsys, vbuf,
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PIPE_BUFFER_USAGE_CPU_WRITE),
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verts, vertex_bytes);
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pipe->winsys->buffer_unmap(pipe->winsys, vbuf);
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/* tell pipe about the vertex buffer */
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vbuffer.buffer = vbuf;
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vbuffer.pitch = numAttribs * 4 * sizeof(float); /* vertex size */
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vbuffer.buffer_offset = 0;
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pipe->set_vertex_buffer(pipe, 0, &vbuffer);
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/* tell pipe about the vertex attributes */
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for (i = 0; i < numAttribs; i++) {
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velement.src_offset = i * 4 * sizeof(GLfloat);
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velement.vertex_buffer_index = 0;
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velement.src_format = PIPE_FORMAT_R32G32B32A32_FLOAT;
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velement.nr_components = 4;
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pipe->set_vertex_element(pipe, i, &velement);
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}
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/* draw */
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pipe->draw_arrays(pipe, prim, 0, numVertex);
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/* XXX: do one-time */
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pipe_buffer_reference(pipe->winsys, &vbuf, NULL);
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}
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/**
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* Set the (private) draw module's post-transformed vertex format when in
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* GL_SELECT or GL_FEEDBACK mode or for glRasterPos.
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*/
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static void
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set_feedback_vertex_format(GLcontext *ctx)
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{
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#if 0
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struct st_context *st = ctx->st;
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struct vertex_info vinfo;
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GLuint i;
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memset(&vinfo, 0, sizeof(vinfo));
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if (ctx->RenderMode == GL_SELECT) {
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assert(ctx->RenderMode == GL_SELECT);
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vinfo.num_attribs = 1;
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vinfo.format[0] = FORMAT_4F;
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vinfo.interp_mode[0] = INTERP_LINEAR;
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}
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else {
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/* GL_FEEDBACK, or glRasterPos */
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/* emit all attribs (pos, color, texcoord) as GLfloat[4] */
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vinfo.num_attribs = st->state.vs->cso->state.num_outputs;
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for (i = 0; i < vinfo.num_attribs; i++) {
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vinfo.format[i] = FORMAT_4F;
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vinfo.interp_mode[i] = INTERP_LINEAR;
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}
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}
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draw_set_vertex_info(st->draw, &vinfo);
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#endif
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}
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/**
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* Called by VBO to draw arrays when in selection or feedback mode and
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* to implement glRasterPos.
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* This is very much like the normal draw_vbo() function above.
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* Look at code refactoring some day.
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* Might move this into the failover module some day.
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*/
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void
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st_feedback_draw_vbo(GLcontext *ctx,
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const struct gl_client_array **arrays,
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const struct _mesa_prim *prims,
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GLuint nr_prims,
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const struct _mesa_index_buffer *ib,
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GLuint min_index,
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GLuint max_index)
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{
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struct st_context *st = ctx->st;
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struct pipe_context *pipe = st->pipe;
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struct draw_context *draw = st->draw;
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struct pipe_winsys *winsys = pipe->winsys;
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const struct st_vertex_program *vp;
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const struct pipe_shader_state *vs;
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struct pipe_buffer *index_buffer_handle = 0;
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struct pipe_vertex_buffer vbuffer[PIPE_MAX_SHADER_INPUTS];
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GLuint attr, i;
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ubyte *mapped_constants;
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assert(draw);
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st_validate_state(ctx->st);
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/* must get these after state validation! */
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vp = ctx->st->vp;
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vs = &st->vp->state;
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if (!st->vp->draw_shader) {
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st->vp->draw_shader = draw_create_vertex_shader(draw, vs);
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}
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/*
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* Set up the draw module's state.
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*
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* We'd like to do this less frequently, but the normal state-update
|
|
* code sends state updates to the pipe, not to our private draw module.
|
|
*/
|
|
assert(draw);
|
|
draw_set_viewport_state(draw, &st->state.viewport);
|
|
draw_set_clip_state(draw, &st->state.clip);
|
|
draw_set_rasterizer_state(draw, &st->state.rasterizer);
|
|
draw_bind_vertex_shader(draw, st->vp->draw_shader);
|
|
set_feedback_vertex_format(ctx);
|
|
|
|
/* loop over TGSI shader inputs to determine vertex buffer
|
|
* and attribute info
|
|
*/
|
|
for (attr = 0; attr < /*vs*/vp->num_inputs; attr++) {
|
|
const GLuint mesaAttr = vp->index_to_input[attr];
|
|
struct gl_buffer_object *bufobj = arrays[mesaAttr]->BufferObj;
|
|
struct pipe_vertex_element velement;
|
|
void *map;
|
|
|
|
if (bufobj && bufobj->Name) {
|
|
/* Attribute data is in a VBO.
|
|
* Recall that for VBOs, the gl_client_array->Ptr field is
|
|
* really an offset from the start of the VBO, not a pointer.
|
|
*/
|
|
struct st_buffer_object *stobj = st_buffer_object(bufobj);
|
|
assert(stobj->buffer);
|
|
|
|
vbuffer[attr].buffer = NULL;
|
|
pipe_buffer_reference(winsys, &vbuffer[attr].buffer, stobj->buffer);
|
|
vbuffer[attr].buffer_offset = (unsigned) arrays[0]->Ptr;/* in bytes */
|
|
velement.src_offset = arrays[mesaAttr]->Ptr - arrays[0]->Ptr;
|
|
}
|
|
else {
|
|
/* attribute data is in user-space memory, not a VBO */
|
|
uint bytes = (arrays[mesaAttr]->Size
|
|
* _mesa_sizeof_type(arrays[mesaAttr]->Type)
|
|
* (max_index + 1));
|
|
|
|
/* wrap user data */
|
|
vbuffer[attr].buffer
|
|
= winsys->user_buffer_create(winsys,
|
|
(void *) arrays[mesaAttr]->Ptr,
|
|
bytes);
|
|
vbuffer[attr].buffer_offset = 0;
|
|
velement.src_offset = 0;
|
|
}
|
|
|
|
/* common-case setup */
|
|
vbuffer[attr].pitch = arrays[mesaAttr]->StrideB; /* in bytes */
|
|
vbuffer[attr].max_index = max_index;
|
|
velement.vertex_buffer_index = attr;
|
|
velement.nr_components = arrays[mesaAttr]->Size;
|
|
velement.src_format = pipe_vertex_format(arrays[mesaAttr]->Type,
|
|
arrays[mesaAttr]->Size,
|
|
arrays[mesaAttr]->Normalized);
|
|
assert(velement.src_format);
|
|
|
|
/* tell draw about this attribute */
|
|
draw_set_vertex_buffer(draw, attr, &vbuffer[attr]);
|
|
draw_set_vertex_element(draw, attr, &velement);
|
|
|
|
/* map the attrib buffer */
|
|
map = pipe->winsys->buffer_map(pipe->winsys,
|
|
vbuffer[attr].buffer,
|
|
PIPE_BUFFER_USAGE_CPU_READ);
|
|
draw_set_mapped_vertex_buffer(draw, attr, map);
|
|
}
|
|
|
|
if (ib) {
|
|
unsigned indexSize;
|
|
struct gl_buffer_object *bufobj = ib->obj;
|
|
struct st_buffer_object *stobj = st_buffer_object(bufobj);
|
|
index_buffer_handle = stobj->buffer;
|
|
void *map;
|
|
|
|
switch (ib->type) {
|
|
case GL_UNSIGNED_INT:
|
|
indexSize = 4;
|
|
break;
|
|
case GL_UNSIGNED_SHORT:
|
|
indexSize = 2;
|
|
break;
|
|
default:
|
|
assert(0);
|
|
return;
|
|
}
|
|
|
|
map = pipe->winsys->buffer_map(pipe->winsys,
|
|
index_buffer_handle,
|
|
PIPE_BUFFER_USAGE_CPU_READ);
|
|
draw_set_mapped_element_buffer(draw, indexSize, map);
|
|
}
|
|
else {
|
|
/* no index/element buffer */
|
|
draw_set_mapped_element_buffer(draw, 0, NULL);
|
|
}
|
|
|
|
|
|
/* map constant buffers */
|
|
mapped_constants = winsys->buffer_map(winsys,
|
|
st->state.constants[PIPE_SHADER_VERTEX].buffer,
|
|
PIPE_BUFFER_USAGE_CPU_READ);
|
|
draw_set_mapped_constant_buffer(st->draw, mapped_constants);
|
|
|
|
|
|
/* draw here */
|
|
for (i = 0; i < nr_prims; i++) {
|
|
draw_arrays(draw, prims[i].mode, prims[i].start, prims[i].count);
|
|
}
|
|
|
|
|
|
/* unmap constant buffers */
|
|
winsys->buffer_unmap(winsys, st->state.constants[PIPE_SHADER_VERTEX].buffer);
|
|
|
|
/*
|
|
* unmap vertex/index buffers
|
|
*/
|
|
for (i = 0; i < PIPE_ATTRIB_MAX; i++) {
|
|
if (draw->vertex_buffer[i].buffer) {
|
|
pipe->winsys->buffer_unmap(pipe->winsys,
|
|
draw->vertex_buffer[i].buffer);
|
|
pipe_buffer_reference(winsys, &draw->vertex_buffer[i].buffer, NULL);
|
|
draw_set_mapped_vertex_buffer(draw, i, NULL);
|
|
}
|
|
}
|
|
if (ib) {
|
|
pipe->winsys->buffer_unmap(pipe->winsys, index_buffer_handle);
|
|
draw_set_mapped_element_buffer(draw, 0, NULL);
|
|
}
|
|
}
|
|
|
|
|
|
|
|
void st_init_draw( struct st_context *st )
|
|
{
|
|
GLcontext *ctx = st->ctx;
|
|
|
|
vbo_set_draw_func(ctx, st_draw_vbo);
|
|
}
|
|
|
|
|
|
void st_destroy_draw( struct st_context *st )
|
|
{
|
|
}
|
|
|
|
|