1 /**************************************************************************
3 * Copyright 2007 Tungsten Graphics, Inc., Cedar Park, Texas.
6 * Permission is hereby granted, free of charge, to any person obtaining a
7 * copy of this software and associated documentation files (the
8 * "Software"), to deal in the Software without restriction, including
9 * without limitation the rights to use, copy, modify, merge, publish,
10 * distribute, sub license, and/or sell copies of the Software, and to
11 * permit persons to whom the Software is furnished to do so, subject to
12 * the following conditions:
14 * The above copyright notice and this permission notice (including the
15 * next paragraph) shall be included in all copies or substantial portions
18 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
19 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
20 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
21 * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR
22 * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
23 * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
24 * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
26 **************************************************************************/
33 #include "main/imports.h"
34 #include "main/image.h"
35 #include "main/bufferobj.h"
36 #include "main/macros.h"
37 #include "main/mfeatures.h"
38 #include "main/mtypes.h"
39 #include "main/pack.h"
41 #include "main/texformat.h"
42 #include "main/teximage.h"
43 #include "main/texstore.h"
44 #include "program/program.h"
45 #include "program/prog_print.h"
46 #include "program/prog_instruction.h"
49 #include "st_atom_constbuf.h"
50 #include "st_cb_drawpixels.h"
51 #include "st_cb_readpixels.h"
52 #include "st_cb_fbo.h"
53 #include "st_context.h"
55 #include "st_format.h"
56 #include "st_program.h"
57 #include "st_texture.h"
59 #include "pipe/p_context.h"
60 #include "pipe/p_defines.h"
61 #include "tgsi/tgsi_ureg.h"
62 #include "util/u_draw_quad.h"
63 #include "util/u_format.h"
64 #include "util/u_inlines.h"
65 #include "util/u_math.h"
66 #include "util/u_tile.h"
67 #include "cso_cache/cso_context.h"
73 * Check if the given program is:
74 * 0: MOVE result.color, fragment.color;
78 is_passthrough_program(const struct gl_fragment_program *prog)
80 if (prog->Base.NumInstructions == 2) {
81 const struct prog_instruction *inst = prog->Base.Instructions;
82 if (inst[0].Opcode == OPCODE_MOV &&
83 inst[1].Opcode == OPCODE_END &&
84 inst[0].DstReg.File == PROGRAM_OUTPUT &&
85 inst[0].DstReg.Index == FRAG_RESULT_COLOR &&
86 inst[0].DstReg.WriteMask == WRITEMASK_XYZW &&
87 inst[0].SrcReg[0].File == PROGRAM_INPUT &&
88 inst[0].SrcReg[0].Index == FRAG_ATTRIB_COL0 &&
89 inst[0].SrcReg[0].Swizzle == SWIZZLE_XYZW) {
99 * Make fragment shader for glDraw/CopyPixels. This shader is made
100 * by combining the pixel transfer shader with the user-defined shader.
101 * \param fpIn the current/incoming fragment program
102 * \param fpOut returns the combined fragment program
105 st_make_drawpix_fragment_program(struct st_context *st,
106 struct gl_fragment_program *fpIn,
107 struct gl_fragment_program **fpOut)
109 struct gl_program *newProg;
111 if (is_passthrough_program(fpIn)) {
112 newProg = (struct gl_program *) _mesa_clone_fragment_program(st->ctx,
113 &st->pixel_xfer.program->Base);
118 printf("Base program:\n");
119 _mesa_print_program(&fpIn->Base);
120 printf("DrawPix program:\n");
121 _mesa_print_program(&st->pixel_xfer.program->Base.Base);
123 newProg = _mesa_combine_programs(st->ctx,
124 &st->pixel_xfer.program->Base.Base,
130 printf("Combined DrawPixels program:\n");
131 _mesa_print_program(newProg);
132 printf("InputsRead: 0x%x\n", newProg->InputsRead);
133 printf("OutputsWritten: 0x%x\n", newProg->OutputsWritten);
134 _mesa_print_parameter_list(newProg->Parameters);
137 *fpOut = (struct gl_fragment_program *) newProg;
142 * Create fragment program that does a TEX() instruction to get a Z and/or
143 * stencil value value, then writes to FRAG_RESULT_DEPTH/FRAG_RESULT_STENCIL.
144 * Used for glDrawPixels(GL_DEPTH_COMPONENT / GL_STENCIL_INDEX).
145 * Pass fragment color through as-is.
146 * \return pointer to the gl_fragment program
148 struct gl_fragment_program *
149 st_make_drawpix_z_stencil_program(struct st_context *st,
150 GLboolean write_depth,
151 GLboolean write_stencil)
153 struct gl_context *ctx = st->ctx;
154 struct gl_program *p;
155 struct gl_fragment_program *fp;
157 const GLuint shaderIndex = write_depth * 2 + write_stencil;
159 assert(shaderIndex < Elements(st->drawpix.shaders));
161 if (st->drawpix.shaders[shaderIndex]) {
162 /* already have the proper shader */
163 return st->drawpix.shaders[shaderIndex];
169 p = ctx->Driver.NewProgram(ctx, GL_FRAGMENT_PROGRAM_ARB, 0);
173 p->NumInstructions = write_depth ? 2 : 1;
174 p->NumInstructions += write_stencil ? 1 : 0;
176 p->Instructions = _mesa_alloc_instructions(p->NumInstructions);
177 if (!p->Instructions) {
178 ctx->Driver.DeleteProgram(ctx, p);
181 _mesa_init_instructions(p->Instructions, p->NumInstructions);
184 /* TEX result.depth, fragment.texcoord[0], texture[0], 2D; */
185 p->Instructions[ic].Opcode = OPCODE_TEX;
186 p->Instructions[ic].DstReg.File = PROGRAM_OUTPUT;
187 p->Instructions[ic].DstReg.Index = FRAG_RESULT_DEPTH;
188 p->Instructions[ic].DstReg.WriteMask = WRITEMASK_Z;
189 p->Instructions[ic].SrcReg[0].File = PROGRAM_INPUT;
190 p->Instructions[ic].SrcReg[0].Index = FRAG_ATTRIB_TEX0;
191 p->Instructions[ic].TexSrcUnit = 0;
192 p->Instructions[ic].TexSrcTarget = TEXTURE_2D_INDEX;
197 /* TEX result.stencil, fragment.texcoord[0], texture[0], 2D; */
198 p->Instructions[ic].Opcode = OPCODE_TEX;
199 p->Instructions[ic].DstReg.File = PROGRAM_OUTPUT;
200 p->Instructions[ic].DstReg.Index = FRAG_RESULT_STENCIL;
201 p->Instructions[ic].DstReg.WriteMask = WRITEMASK_Y;
202 p->Instructions[ic].SrcReg[0].File = PROGRAM_INPUT;
203 p->Instructions[ic].SrcReg[0].Index = FRAG_ATTRIB_TEX0;
204 p->Instructions[ic].TexSrcUnit = 1;
205 p->Instructions[ic].TexSrcTarget = TEXTURE_2D_INDEX;
210 p->Instructions[ic++].Opcode = OPCODE_END;
212 assert(ic == p->NumInstructions);
214 p->InputsRead = FRAG_BIT_TEX0 | FRAG_BIT_COL0;
215 p->OutputsWritten = 0;
217 p->OutputsWritten |= BITFIELD64_BIT(FRAG_RESULT_DEPTH);
219 p->OutputsWritten |= BITFIELD64_BIT(FRAG_RESULT_STENCIL);
221 p->SamplersUsed = 0x1; /* sampler 0 (bit 0) is used */
223 p->SamplersUsed |= 1 << 1;
225 fp = (struct gl_fragment_program *) p;
227 /* save the new shader */
228 st->drawpix.shaders[shaderIndex] = fp;
235 * Create a simple vertex shader that just passes through the
236 * vertex position and texcoord (and optionally, color).
239 make_passthrough_vertex_shader(struct st_context *st,
242 if (!st->drawpix.vert_shaders[passColor]) {
243 struct ureg_program *ureg = ureg_create( TGSI_PROCESSOR_VERTEX );
248 /* MOV result.pos, vertex.pos; */
250 ureg_DECL_output( ureg, TGSI_SEMANTIC_POSITION, 0 ),
251 ureg_DECL_vs_input( ureg, 0 ));
253 /* MOV result.texcoord0, vertex.attr[1]; */
255 ureg_DECL_output( ureg, TGSI_SEMANTIC_GENERIC, 0 ),
256 ureg_DECL_vs_input( ureg, 1 ));
259 /* MOV result.color0, vertex.attr[2]; */
261 ureg_DECL_output( ureg, TGSI_SEMANTIC_COLOR, 0 ),
262 ureg_DECL_vs_input( ureg, 2 ));
267 st->drawpix.vert_shaders[passColor] =
268 ureg_create_shader_and_destroy( ureg, st->pipe );
271 return st->drawpix.vert_shaders[passColor];
276 * Return a texture base format for drawing/copying an image
277 * of the given format.
280 base_format(GLenum format)
283 case GL_DEPTH_COMPONENT:
284 return GL_DEPTH_COMPONENT;
285 case GL_DEPTH_STENCIL:
286 return GL_DEPTH_STENCIL;
287 case GL_STENCIL_INDEX:
288 return GL_STENCIL_INDEX;
296 * Return a texture internalFormat for drawing/copying an image
297 * of the given format and type.
300 internal_format(struct gl_context *ctx, GLenum format, GLenum type)
303 case GL_DEPTH_COMPONENT:
304 return GL_DEPTH_COMPONENT;
305 case GL_DEPTH_STENCIL:
306 return GL_DEPTH_STENCIL;
307 case GL_STENCIL_INDEX:
308 return GL_STENCIL_INDEX;
310 if (_mesa_is_integer_format(format)) {
314 case GL_UNSIGNED_BYTE:
318 case GL_UNSIGNED_SHORT:
322 case GL_UNSIGNED_INT:
325 assert(0 && "Unexpected type in internal_format()");
326 return GL_RGBA_INTEGER;
331 case GL_UNSIGNED_BYTE:
332 case GL_UNSIGNED_INT_8_8_8_8:
333 case GL_UNSIGNED_INT_8_8_8_8_REV:
337 case GL_UNSIGNED_BYTE_3_3_2:
338 case GL_UNSIGNED_BYTE_2_3_3_REV:
339 case GL_UNSIGNED_SHORT_4_4_4_4:
340 case GL_UNSIGNED_SHORT_4_4_4_4_REV:
343 case GL_UNSIGNED_SHORT_5_6_5:
344 case GL_UNSIGNED_SHORT_5_6_5_REV:
345 case GL_UNSIGNED_SHORT_5_5_5_1:
346 case GL_UNSIGNED_SHORT_1_5_5_5_REV:
349 case GL_UNSIGNED_INT_10_10_10_2:
350 case GL_UNSIGNED_INT_2_10_10_10_REV:
353 case GL_UNSIGNED_SHORT:
354 case GL_UNSIGNED_INT:
359 ctx->Extensions.EXT_texture_snorm ? GL_RGBA8_SNORM : GL_RGBA8;
364 ctx->Extensions.EXT_texture_snorm ? GL_RGBA16_SNORM : GL_RGBA16;
366 case GL_HALF_FLOAT_ARB:
368 ctx->Extensions.ARB_texture_float ? GL_RGBA16F :
369 ctx->Extensions.EXT_texture_snorm ? GL_RGBA16_SNORM : GL_RGBA16;
374 ctx->Extensions.ARB_texture_float ? GL_RGBA32F :
375 ctx->Extensions.EXT_texture_snorm ? GL_RGBA16_SNORM : GL_RGBA16;
377 case GL_UNSIGNED_INT_5_9_9_9_REV:
378 assert(ctx->Extensions.EXT_texture_shared_exponent);
381 case GL_UNSIGNED_INT_10F_11F_11F_REV:
382 assert(ctx->Extensions.EXT_packed_float);
383 return GL_R11F_G11F_B10F;
391 * Create a temporary texture to hold an image of the given size.
392 * If width, height are not POT and the driver only handles POT textures,
393 * allocate the next larger size of texture that is POT.
395 static struct pipe_resource *
396 alloc_texture(struct st_context *st, GLsizei width, GLsizei height,
397 enum pipe_format texFormat)
399 struct pipe_resource *pt;
401 pt = st_texture_create(st, st->internal_target, texFormat, 0,
402 width, height, 1, 1, PIPE_BIND_SAMPLER_VIEW);
409 * Make texture containing an image for glDrawPixels image.
410 * If 'pixels' is NULL, leave the texture image data undefined.
412 static struct pipe_resource *
413 make_texture(struct st_context *st,
414 GLsizei width, GLsizei height, GLenum format, GLenum type,
415 const struct gl_pixelstore_attrib *unpack,
416 const GLvoid *pixels)
418 struct gl_context *ctx = st->ctx;
419 struct pipe_context *pipe = st->pipe;
421 struct pipe_resource *pt;
422 enum pipe_format pipeFormat;
423 GLenum baseInternalFormat, intFormat;
425 intFormat = internal_format(ctx, format, type);
426 baseInternalFormat = _mesa_base_tex_format(ctx, intFormat);
428 mformat = st_ChooseTextureFormat_renderable(ctx, intFormat,
429 format, type, GL_FALSE);
432 pipeFormat = st_mesa_format_to_pipe_format(mformat);
435 pixels = _mesa_map_pbo_source(ctx, unpack, pixels);
439 /* alloc temporary texture */
440 pt = alloc_texture(st, width, height, pipeFormat);
442 _mesa_unmap_pbo_source(ctx, unpack);
447 struct pipe_transfer *transfer;
448 static const GLuint dstImageOffsets = 0;
451 const GLbitfield imageTransferStateSave = ctx->_ImageTransferState;
453 /* we'll do pixel transfer in a fragment shader */
454 ctx->_ImageTransferState = 0x0;
456 transfer = pipe_get_transfer(st->pipe, pt, 0, 0,
457 PIPE_TRANSFER_WRITE, 0, 0,
460 /* map texture transfer */
461 dest = pipe_transfer_map(pipe, transfer);
464 /* Put image into texture transfer.
465 * Note that the image is actually going to be upside down in
466 * the texture. We deal with that with texcoords.
468 success = _mesa_texstore(ctx, 2, /* dims */
469 baseInternalFormat, /* baseInternalFormat */
470 mformat, /* gl_format */
472 0, 0, 0, /* dstX/Y/Zoffset */
473 transfer->stride, /* dstRowStride, bytes */
474 &dstImageOffsets, /* dstImageOffsets */
475 width, height, 1, /* size */
476 format, type, /* src format/type */
477 pixels, /* data source */
481 pipe_transfer_unmap(pipe, transfer);
482 pipe->transfer_destroy(pipe, transfer);
487 ctx->_ImageTransferState = imageTransferStateSave;
490 _mesa_unmap_pbo_source(ctx, unpack);
497 * Draw quad with texcoords and optional color.
498 * Coords are gallium window coords with y=0=top.
499 * \param color may be null
500 * \param invertTex if true, flip texcoords vertically
503 draw_quad(struct gl_context *ctx, GLfloat x0, GLfloat y0, GLfloat z,
504 GLfloat x1, GLfloat y1, const GLfloat *color,
505 GLboolean invertTex, GLfloat maxXcoord, GLfloat maxYcoord)
507 struct st_context *st = st_context(ctx);
508 struct pipe_context *pipe = st->pipe;
509 GLfloat verts[4][3][4]; /* four verts, three attribs, XYZW */
511 /* setup vertex data */
513 const struct gl_framebuffer *fb = st->ctx->DrawBuffer;
514 const GLfloat fb_width = (GLfloat) fb->Width;
515 const GLfloat fb_height = (GLfloat) fb->Height;
516 const GLfloat clip_x0 = x0 / fb_width * 2.0f - 1.0f;
517 const GLfloat clip_y0 = y0 / fb_height * 2.0f - 1.0f;
518 const GLfloat clip_x1 = x1 / fb_width * 2.0f - 1.0f;
519 const GLfloat clip_y1 = y1 / fb_height * 2.0f - 1.0f;
520 const GLfloat sLeft = 0.0f, sRight = maxXcoord;
521 const GLfloat tTop = invertTex ? maxYcoord : 0.0f;
522 const GLfloat tBot = invertTex ? 0.0f : maxYcoord;
526 verts[0][0][0] = clip_x0; /* v[0].attr[0].x */
527 verts[0][0][1] = clip_y0; /* v[0].attr[0].y */
530 verts[1][0][0] = clip_x1;
531 verts[1][0][1] = clip_y0;
534 verts[2][0][0] = clip_x1;
535 verts[2][0][1] = clip_y1;
538 verts[3][0][0] = clip_x0;
539 verts[3][0][1] = clip_y1;
541 verts[0][1][0] = sLeft; /* v[0].attr[1].S */
542 verts[0][1][1] = tTop; /* v[0].attr[1].T */
543 verts[1][1][0] = sRight;
544 verts[1][1][1] = tTop;
545 verts[2][1][0] = sRight;
546 verts[2][1][1] = tBot;
547 verts[3][1][0] = sLeft;
548 verts[3][1][1] = tBot;
550 /* same for all verts: */
552 for (i = 0; i < 4; i++) {
553 verts[i][0][2] = z; /* v[i].attr[0].z */
554 verts[i][0][3] = 1.0f; /* v[i].attr[0].w */
555 verts[i][2][0] = color[0]; /* v[i].attr[2].r */
556 verts[i][2][1] = color[1]; /* v[i].attr[2].g */
557 verts[i][2][2] = color[2]; /* v[i].attr[2].b */
558 verts[i][2][3] = color[3]; /* v[i].attr[2].a */
559 verts[i][1][2] = 0.0f; /* v[i].attr[1].R */
560 verts[i][1][3] = 1.0f; /* v[i].attr[1].Q */
564 for (i = 0; i < 4; i++) {
565 verts[i][0][2] = z; /*Z*/
566 verts[i][0][3] = 1.0f; /*W*/
567 verts[i][1][2] = 0.0f; /*R*/
568 verts[i][1][3] = 1.0f; /*Q*/
574 struct pipe_resource *buf;
576 /* allocate/load buffer object with vertex data */
577 buf = pipe_buffer_create(pipe->screen,
578 PIPE_BIND_VERTEX_BUFFER,
581 pipe_buffer_write(st->pipe, buf, 0, sizeof(verts), verts);
583 util_draw_vertex_buffer(pipe, st->cso_context, buf, 0,
586 3); /* attribs/vert */
587 pipe_resource_reference(&buf, NULL);
594 draw_textured_quad(struct gl_context *ctx, GLint x, GLint y, GLfloat z,
595 GLsizei width, GLsizei height,
596 GLfloat zoomX, GLfloat zoomY,
597 struct pipe_sampler_view **sv,
598 int num_sampler_view,
601 const GLfloat *color,
603 GLboolean write_depth, GLboolean write_stencil)
605 struct st_context *st = st_context(ctx);
606 struct pipe_context *pipe = st->pipe;
607 struct cso_context *cso = st->cso_context;
608 GLfloat x0, y0, x1, y1;
610 boolean normalized = sv[0]->texture->target != PIPE_TEXTURE_RECT;
613 /* XXX if DrawPixels image is larger than max texture size, break
616 maxSize = 1 << (pipe->screen->get_param(pipe->screen,
617 PIPE_CAP_MAX_TEXTURE_2D_LEVELS) - 1);
618 assert(width <= maxSize);
619 assert(height <= maxSize);
621 cso_save_rasterizer(cso);
622 cso_save_viewport(cso);
623 cso_save_samplers(cso);
624 cso_save_fragment_sampler_views(cso);
625 cso_save_fragment_shader(cso);
626 cso_save_vertex_shader(cso);
627 cso_save_vertex_elements(cso);
628 cso_save_vertex_buffers(cso);
630 cso_save_depth_stencil_alpha(cso);
634 /* rasterizer state: just scissor */
636 struct pipe_rasterizer_state rasterizer;
637 memset(&rasterizer, 0, sizeof(rasterizer));
638 rasterizer.clamp_fragment_color = ctx->Color._ClampFragmentColor;
639 rasterizer.gl_rasterization_rules = 1;
640 rasterizer.scissor = ctx->Scissor.Enabled;
641 cso_set_rasterizer(cso, &rasterizer);
645 /* Stencil writing bypasses the normal fragment pipeline to
646 * disable color writing and set stencil test to always pass.
648 struct pipe_depth_stencil_alpha_state dsa;
649 struct pipe_blend_state blend;
652 memset(&dsa, 0, sizeof(dsa));
653 dsa.stencil[0].enabled = 1;
654 dsa.stencil[0].func = PIPE_FUNC_ALWAYS;
655 dsa.stencil[0].writemask = ctx->Stencil.WriteMask[0] & 0xff;
656 dsa.stencil[0].zpass_op = PIPE_STENCIL_OP_REPLACE;
658 /* writing depth+stencil: depth test always passes */
659 dsa.depth.enabled = 1;
660 dsa.depth.writemask = ctx->Depth.Mask;
661 dsa.depth.func = PIPE_FUNC_ALWAYS;
663 cso_set_depth_stencil_alpha(cso, &dsa);
665 /* blend (colormask) */
666 memset(&blend, 0, sizeof(blend));
667 cso_set_blend(cso, &blend);
670 /* fragment shader state: TEX lookup program */
671 cso_set_fragment_shader_handle(cso, driver_fp);
673 /* vertex shader state: position + texcoord pass-through */
674 cso_set_vertex_shader_handle(cso, driver_vp);
677 /* texture sampling state: */
679 struct pipe_sampler_state sampler;
680 memset(&sampler, 0, sizeof(sampler));
681 sampler.wrap_s = PIPE_TEX_WRAP_CLAMP;
682 sampler.wrap_t = PIPE_TEX_WRAP_CLAMP;
683 sampler.wrap_r = PIPE_TEX_WRAP_CLAMP;
684 sampler.min_img_filter = PIPE_TEX_FILTER_NEAREST;
685 sampler.min_mip_filter = PIPE_TEX_MIPFILTER_NONE;
686 sampler.mag_img_filter = PIPE_TEX_FILTER_NEAREST;
687 sampler.normalized_coords = normalized;
689 cso_single_sampler(cso, 0, &sampler);
690 if (num_sampler_view > 1) {
691 cso_single_sampler(cso, 1, &sampler);
693 cso_single_sampler_done(cso);
696 /* viewport state: viewport matching window dims */
698 const float w = (float) ctx->DrawBuffer->Width;
699 const float h = (float) ctx->DrawBuffer->Height;
700 struct pipe_viewport_state vp;
701 vp.scale[0] = 0.5f * w;
702 vp.scale[1] = -0.5f * h;
705 vp.translate[0] = 0.5f * w;
706 vp.translate[1] = 0.5f * h;
707 vp.translate[2] = 0.5f;
708 vp.translate[3] = 0.0f;
709 cso_set_viewport(cso, &vp);
712 cso_set_vertex_elements(cso, 3, st->velems_util_draw);
715 cso_set_fragment_sampler_views(cso, num_sampler_view, sv);
717 /* Compute Gallium window coords (y=0=top) with pixel zoom.
718 * Recall that these coords are transformed by the current
719 * vertex shader and viewport transformation.
721 if (st_fb_orientation(ctx->DrawBuffer) == Y_0_BOTTOM) {
722 y = ctx->DrawBuffer->Height - (int) (y + height * ctx->Pixel.ZoomY);
723 invertTex = !invertTex;
727 x1 = x + width * ctx->Pixel.ZoomX;
729 y1 = y + height * ctx->Pixel.ZoomY;
731 /* convert Z from [0,1] to [-1,-1] to match viewport Z scale/bias */
734 draw_quad(ctx, x0, y0, z, x1, y1, color, invertTex,
735 normalized ? ((GLfloat) width / sv[0]->texture->width0) : (GLfloat)width,
736 normalized ? ((GLfloat) height / sv[0]->texture->height0) : (GLfloat)height);
739 cso_restore_rasterizer(cso);
740 cso_restore_viewport(cso);
741 cso_restore_samplers(cso);
742 cso_restore_fragment_sampler_views(cso);
743 cso_restore_fragment_shader(cso);
744 cso_restore_vertex_shader(cso);
745 cso_restore_vertex_elements(cso);
746 cso_restore_vertex_buffers(cso);
748 cso_restore_depth_stencil_alpha(cso);
749 cso_restore_blend(cso);
755 * Software fallback to do glDrawPixels(GL_STENCIL_INDEX) when we
756 * can't use a fragment shader to write stencil values.
759 draw_stencil_pixels(struct gl_context *ctx, GLint x, GLint y,
760 GLsizei width, GLsizei height, GLenum format, GLenum type,
761 const struct gl_pixelstore_attrib *unpack,
762 const GLvoid *pixels)
764 struct st_context *st = st_context(ctx);
765 struct pipe_context *pipe = st->pipe;
766 struct st_renderbuffer *strb;
767 enum pipe_transfer_usage usage;
768 struct pipe_transfer *pt;
769 const GLboolean zoom = ctx->Pixel.ZoomX != 1.0 || ctx->Pixel.ZoomY != 1.0;
772 struct gl_pixelstore_attrib clippedUnpack = *unpack;
775 if (!_mesa_clip_drawpixels(ctx, &x, &y, &width, &height,
777 /* totally clipped */
782 strb = st_renderbuffer(ctx->DrawBuffer->
783 Attachment[BUFFER_STENCIL].Renderbuffer);
785 if (st_fb_orientation(ctx->DrawBuffer) == Y_0_TOP) {
786 y = ctx->DrawBuffer->Height - y - height;
789 if(format != GL_DEPTH_STENCIL &&
790 util_format_get_component_bits(strb->format,
791 UTIL_FORMAT_COLORSPACE_ZS, 0) != 0)
792 usage = PIPE_TRANSFER_READ_WRITE;
794 usage = PIPE_TRANSFER_WRITE;
796 pt = pipe_get_transfer(pipe, strb->texture,
797 strb->rtt_level, strb->rtt_face + strb->rtt_slice,
801 stmap = pipe_transfer_map(pipe, pt);
803 pixels = _mesa_map_pbo_source(ctx, &clippedUnpack, pixels);
806 /* if width > MAX_WIDTH, have to process image in chunks */
808 while (skipPixels < width) {
809 const GLint spanX = skipPixels;
810 const GLint spanWidth = MIN2(width - skipPixels, MAX_WIDTH);
812 for (row = 0; row < height; row++) {
813 GLubyte sValues[MAX_WIDTH];
814 GLuint zValues[MAX_WIDTH];
815 GLenum destType = GL_UNSIGNED_BYTE;
816 const GLvoid *source = _mesa_image_address2d(&clippedUnpack, pixels,
820 _mesa_unpack_stencil_span(ctx, spanWidth, destType, sValues,
821 type, source, &clippedUnpack,
822 ctx->_ImageTransferState);
824 if (format == GL_DEPTH_STENCIL) {
825 _mesa_unpack_depth_span(ctx, spanWidth, GL_UNSIGNED_INT, zValues,
826 (1 << 24) - 1, type, source,
831 _mesa_problem(ctx, "Gallium glDrawPixels(GL_STENCIL) with "
832 "zoom not complete");
838 if (st_fb_orientation(ctx->DrawBuffer) == Y_0_TOP) {
839 spanY = height - row - 1;
845 /* now pack the stencil (and Z) values in the dest format */
846 switch (pt->resource->format) {
847 case PIPE_FORMAT_S8_USCALED:
849 ubyte *dest = stmap + spanY * pt->stride + spanX;
850 assert(usage == PIPE_TRANSFER_WRITE);
851 memcpy(dest, sValues, spanWidth);
854 case PIPE_FORMAT_Z24_UNORM_S8_USCALED:
855 if (format == GL_DEPTH_STENCIL) {
856 uint *dest = (uint *) (stmap + spanY * pt->stride + spanX*4);
858 assert(usage == PIPE_TRANSFER_WRITE);
859 for (k = 0; k < spanWidth; k++) {
860 dest[k] = zValues[k] | (sValues[k] << 24);
864 uint *dest = (uint *) (stmap + spanY * pt->stride + spanX*4);
866 assert(usage == PIPE_TRANSFER_READ_WRITE);
867 for (k = 0; k < spanWidth; k++) {
868 dest[k] = (dest[k] & 0xffffff) | (sValues[k] << 24);
872 case PIPE_FORMAT_S8_USCALED_Z24_UNORM:
873 if (format == GL_DEPTH_STENCIL) {
874 uint *dest = (uint *) (stmap + spanY * pt->stride + spanX*4);
876 assert(usage == PIPE_TRANSFER_WRITE);
877 for (k = 0; k < spanWidth; k++) {
878 dest[k] = (zValues[k] << 8) | (sValues[k] & 0xff);
882 uint *dest = (uint *) (stmap + spanY * pt->stride + spanX*4);
884 assert(usage == PIPE_TRANSFER_READ_WRITE);
885 for (k = 0; k < spanWidth; k++) {
886 dest[k] = (dest[k] & 0xffffff00) | (sValues[k] & 0xff);
895 skipPixels += spanWidth;
898 _mesa_unmap_pbo_source(ctx, &clippedUnpack);
900 /* unmap the stencil buffer */
901 pipe_transfer_unmap(pipe, pt);
902 pipe->transfer_destroy(pipe, pt);
907 * Get fragment program variant for a glDrawPixels or glCopyPixels
908 * command for RGBA data.
910 static struct st_fp_variant *
911 get_color_fp_variant(struct st_context *st)
913 struct gl_context *ctx = st->ctx;
914 struct st_fp_variant_key key;
915 struct st_fp_variant *fpv;
917 memset(&key, 0, sizeof(key));
921 key.scaleAndBias = (ctx->Pixel.RedBias != 0.0 ||
922 ctx->Pixel.RedScale != 1.0 ||
923 ctx->Pixel.GreenBias != 0.0 ||
924 ctx->Pixel.GreenScale != 1.0 ||
925 ctx->Pixel.BlueBias != 0.0 ||
926 ctx->Pixel.BlueScale != 1.0 ||
927 ctx->Pixel.AlphaBias != 0.0 ||
928 ctx->Pixel.AlphaScale != 1.0);
929 key.pixelMaps = ctx->Pixel.MapColorFlag;
931 fpv = st_get_fp_variant(st, st->fp, &key);
938 * Get fragment program variant for a glDrawPixels or glCopyPixels
939 * command for depth/stencil data.
941 static struct st_fp_variant *
942 get_depth_stencil_fp_variant(struct st_context *st, GLboolean write_depth,
943 GLboolean write_stencil)
945 struct st_fp_variant_key key;
946 struct st_fp_variant *fpv;
948 memset(&key, 0, sizeof(key));
952 key.drawpixels_z = write_depth;
953 key.drawpixels_stencil = write_stencil;
955 fpv = st_get_fp_variant(st, st->fp, &key);
962 * Called via ctx->Driver.DrawPixels()
965 st_DrawPixels(struct gl_context *ctx, GLint x, GLint y,
966 GLsizei width, GLsizei height,
967 GLenum format, GLenum type,
968 const struct gl_pixelstore_attrib *unpack, const GLvoid *pixels)
970 void *driver_vp, *driver_fp;
971 struct st_context *st = st_context(ctx);
972 const GLfloat *color;
973 struct pipe_context *pipe = st->pipe;
974 GLboolean write_stencil = GL_FALSE, write_depth = GL_FALSE;
975 struct pipe_sampler_view *sv[2];
976 int num_sampler_view = 1;
977 enum pipe_format stencil_format = PIPE_FORMAT_NONE;
978 struct st_fp_variant *fpv;
980 if (format == GL_DEPTH_STENCIL)
981 write_stencil = write_depth = GL_TRUE;
982 else if (format == GL_STENCIL_INDEX)
983 write_stencil = GL_TRUE;
984 else if (format == GL_DEPTH_COMPONENT)
985 write_depth = GL_TRUE;
988 enum pipe_format tex_format;
989 /* can we write to stencil if not fallback */
990 if (!pipe->screen->get_param(pipe->screen, PIPE_CAP_SHADER_STENCIL_EXPORT))
991 goto stencil_fallback;
993 tex_format = st_choose_format(st->pipe->screen, base_format(format),
996 0, PIPE_BIND_SAMPLER_VIEW);
997 if (tex_format == PIPE_FORMAT_Z24_UNORM_S8_USCALED)
998 stencil_format = PIPE_FORMAT_X24S8_USCALED;
999 else if (tex_format == PIPE_FORMAT_S8_USCALED_Z24_UNORM)
1000 stencil_format = PIPE_FORMAT_S8X24_USCALED;
1002 stencil_format = PIPE_FORMAT_S8_USCALED;
1003 if (stencil_format == PIPE_FORMAT_NONE)
1004 goto stencil_fallback;
1007 /* Mesa state should be up to date by now */
1008 assert(ctx->NewState == 0x0);
1010 st_validate_state(st);
1013 * Get vertex/fragment shaders
1015 if (write_depth || write_stencil) {
1016 fpv = get_depth_stencil_fp_variant(st, write_depth, write_stencil);
1018 driver_fp = fpv->driver_shader;
1020 driver_vp = make_passthrough_vertex_shader(st, GL_TRUE);
1022 color = ctx->Current.RasterColor;
1025 fpv = get_color_fp_variant(st);
1027 driver_fp = fpv->driver_shader;
1029 driver_vp = make_passthrough_vertex_shader(st, GL_FALSE);
1032 if (st->pixel_xfer.pixelmap_enabled) {
1033 sv[1] = st->pixel_xfer.pixelmap_sampler_view;
1038 /* update fragment program constants */
1039 st_upload_constants(st, fpv->parameters, PIPE_SHADER_FRAGMENT);
1041 /* draw with textured quad */
1043 struct pipe_resource *pt
1044 = make_texture(st, width, height, format, type, unpack, pixels);
1046 sv[0] = st_create_texture_sampler_view(st->pipe, pt);
1049 if (write_stencil) {
1050 sv[1] = st_create_texture_sampler_view_format(st->pipe, pt,
1055 draw_textured_quad(ctx, x, y, ctx->Current.RasterPos[2],
1057 ctx->Pixel.ZoomX, ctx->Pixel.ZoomY,
1062 color, GL_FALSE, write_depth, write_stencil);
1063 pipe_sampler_view_reference(&sv[0], NULL);
1064 if (num_sampler_view > 1)
1065 pipe_sampler_view_reference(&sv[1], NULL);
1067 pipe_resource_reference(&pt, NULL);
1073 draw_stencil_pixels(ctx, x, y, width, height, format, type,
1080 * Software fallback for glCopyPixels(GL_STENCIL).
1083 copy_stencil_pixels(struct gl_context *ctx, GLint srcx, GLint srcy,
1084 GLsizei width, GLsizei height,
1085 GLint dstx, GLint dsty)
1087 struct st_renderbuffer *rbDraw;
1088 struct pipe_context *pipe = st_context(ctx)->pipe;
1089 enum pipe_transfer_usage usage;
1090 struct pipe_transfer *ptDraw;
1095 buffer = malloc(width * height * sizeof(ubyte));
1097 _mesa_error(ctx, GL_OUT_OF_MEMORY, "glCopyPixels(stencil)");
1101 /* Get the dest renderbuffer. If there's a wrapper, use the
1102 * underlying renderbuffer.
1104 rbDraw = st_renderbuffer(ctx->DrawBuffer->_StencilBuffer);
1105 if (rbDraw->Base.Wrapped)
1106 rbDraw = st_renderbuffer(rbDraw->Base.Wrapped);
1108 /* this will do stencil pixel transfer ops */
1109 st_read_stencil_pixels(ctx, srcx, srcy, width, height,
1110 GL_STENCIL_INDEX, GL_UNSIGNED_BYTE,
1111 &ctx->DefaultPacking, buffer);
1114 /* debug code: dump stencil values */
1116 for (row = 0; row < height; row++) {
1117 printf("%3d: ", row);
1118 for (col = 0; col < width; col++) {
1119 printf("%02x ", buffer[col + row * width]);
1125 if (util_format_get_component_bits(rbDraw->format,
1126 UTIL_FORMAT_COLORSPACE_ZS, 0) != 0)
1127 usage = PIPE_TRANSFER_READ_WRITE;
1129 usage = PIPE_TRANSFER_WRITE;
1131 if (st_fb_orientation(ctx->DrawBuffer) == Y_0_TOP) {
1132 dsty = rbDraw->Base.Height - dsty - height;
1135 ptDraw = pipe_get_transfer(pipe,
1138 rbDraw->rtt_face + rbDraw->rtt_slice,
1142 assert(util_format_get_blockwidth(ptDraw->resource->format) == 1);
1143 assert(util_format_get_blockheight(ptDraw->resource->format) == 1);
1145 /* map the stencil buffer */
1146 drawMap = pipe_transfer_map(pipe, ptDraw);
1149 /* XXX PixelZoom not handled yet */
1150 for (i = 0; i < height; i++) {
1157 if (st_fb_orientation(ctx->DrawBuffer) == Y_0_TOP) {
1161 dst = drawMap + y * ptDraw->stride;
1162 src = buffer + i * width;
1164 switch (ptDraw->resource->format) {
1165 case PIPE_FORMAT_Z24_UNORM_S8_USCALED:
1167 uint *dst4 = (uint *) dst;
1169 assert(usage == PIPE_TRANSFER_READ_WRITE);
1170 for (j = 0; j < width; j++) {
1171 *dst4 = (*dst4 & 0xffffff) | (src[j] << 24);
1176 case PIPE_FORMAT_S8_USCALED_Z24_UNORM:
1178 uint *dst4 = (uint *) dst;
1180 assert(usage == PIPE_TRANSFER_READ_WRITE);
1181 for (j = 0; j < width; j++) {
1182 *dst4 = (*dst4 & 0xffffff00) | (src[j] & 0xff);
1187 case PIPE_FORMAT_S8_USCALED:
1188 assert(usage == PIPE_TRANSFER_WRITE);
1189 memcpy(dst, src, width);
1198 /* unmap the stencil buffer */
1199 pipe_transfer_unmap(pipe, ptDraw);
1200 pipe->transfer_destroy(pipe, ptDraw);
1204 /** Do the src/dest regions overlap? */
1206 regions_overlap(GLint srcX, GLint srcY, GLint dstX, GLint dstY,
1207 GLsizei width, GLsizei height)
1209 if (srcX + width <= dstX ||
1210 dstX + width <= srcX ||
1211 srcY + height <= dstY ||
1212 dstY + height <= srcY)
1220 * Try to do a glCopyPixels for simple cases with a blit by calling
1221 * pipe->resource_copy_region().
1223 * We can do this when we're copying color pixels (depth/stencil
1224 * eventually) with no pixel zoom, no pixel transfer ops, no
1225 * per-fragment ops, the src/dest regions don't overlap and the
1226 * src/dest pixel formats are the same.
1229 blit_copy_pixels(struct gl_context *ctx, GLint srcx, GLint srcy,
1230 GLsizei width, GLsizei height,
1231 GLint dstx, GLint dsty, GLenum type)
1233 struct st_context *st = st_context(ctx);
1234 struct pipe_context *pipe = st->pipe;
1235 struct gl_pixelstore_attrib pack, unpack;
1236 GLint readX, readY, readW, readH;
1238 if (type == GL_COLOR &&
1239 ctx->Pixel.ZoomX == 1.0 &&
1240 ctx->Pixel.ZoomY == 1.0 &&
1241 ctx->_ImageTransferState == 0x0 &&
1242 !ctx->Color.BlendEnabled &&
1243 !ctx->Color.AlphaEnabled &&
1245 !ctx->Fog.Enabled &&
1246 !ctx->Stencil.Enabled &&
1247 !ctx->FragmentProgram.Enabled &&
1248 !ctx->VertexProgram.Enabled &&
1249 !ctx->Shader.CurrentFragmentProgram &&
1250 st_fb_orientation(ctx->ReadBuffer) == st_fb_orientation(ctx->DrawBuffer) &&
1251 ctx->DrawBuffer->_NumColorDrawBuffers == 1 &&
1252 !ctx->Query.CondRenderQuery) {
1253 struct st_renderbuffer *rbRead, *rbDraw;
1257 * Clip the read region against the src buffer bounds.
1258 * We'll still allocate a temporary buffer/texture for the original
1259 * src region size but we'll only read the region which is on-screen.
1260 * This may mean that we draw garbage pixels into the dest region, but
1267 pack = ctx->DefaultPacking;
1268 if (!_mesa_clip_readpixels(ctx, &readX, &readY, &readW, &readH, &pack))
1269 return GL_TRUE; /* all done */
1271 /* clip against dest buffer bounds and scissor box */
1272 drawX = dstx + pack.SkipPixels;
1273 drawY = dsty + pack.SkipRows;
1275 if (!_mesa_clip_drawpixels(ctx, &drawX, &drawY, &readW, &readH, &unpack))
1276 return GL_TRUE; /* all done */
1278 readX = readX - pack.SkipPixels + unpack.SkipPixels;
1279 readY = readY - pack.SkipRows + unpack.SkipRows;
1281 rbRead = st_get_color_read_renderbuffer(ctx);
1282 rbDraw = st_renderbuffer(ctx->DrawBuffer->_ColorDrawBuffers[0]);
1284 if ((rbRead != rbDraw ||
1285 !regions_overlap(readX, readY, drawX, drawY, readW, readH)) &&
1286 rbRead->Base.Format == rbDraw->Base.Format) {
1287 struct pipe_box srcBox;
1289 /* flip src/dst position if needed */
1290 if (st_fb_orientation(ctx->ReadBuffer) == Y_0_TOP) {
1291 /* both buffers will have the same orientation */
1292 readY = ctx->ReadBuffer->Height - readY - readH;
1293 drawY = ctx->DrawBuffer->Height - drawY - readH;
1296 u_box_2d(readX, readY, readW, readH, &srcBox);
1298 pipe->resource_copy_region(pipe,
1300 rbDraw->rtt_level, drawX, drawY, 0,
1302 rbRead->rtt_level, &srcBox);
1312 st_CopyPixels(struct gl_context *ctx, GLint srcx, GLint srcy,
1313 GLsizei width, GLsizei height,
1314 GLint dstx, GLint dsty, GLenum type)
1316 struct st_context *st = st_context(ctx);
1317 struct pipe_context *pipe = st->pipe;
1318 struct pipe_screen *screen = pipe->screen;
1319 struct st_renderbuffer *rbRead;
1320 void *driver_vp, *driver_fp;
1321 struct pipe_resource *pt;
1322 struct pipe_sampler_view *sv[2];
1323 int num_sampler_view = 1;
1325 enum pipe_format srcFormat, texFormat;
1326 GLboolean invertTex = GL_FALSE;
1327 GLint readX, readY, readW, readH;
1328 GLuint sample_count;
1329 struct gl_pixelstore_attrib pack = ctx->DefaultPacking;
1330 struct st_fp_variant *fpv;
1332 st_validate_state(st);
1334 if (type == GL_STENCIL) {
1335 /* can't use texturing to do stencil */
1336 copy_stencil_pixels(ctx, srcx, srcy, width, height, dstx, dsty);
1340 if (blit_copy_pixels(ctx, srcx, srcy, width, height, dstx, dsty, type))
1344 * The subsequent code implements glCopyPixels by copying the source
1345 * pixels into a temporary texture that's then applied to a textured quad.
1346 * When we draw the textured quad, all the usual per-fragment operations
1352 * Get vertex/fragment shaders
1354 if (type == GL_COLOR) {
1355 rbRead = st_get_color_read_renderbuffer(ctx);
1358 fpv = get_color_fp_variant(st);
1359 driver_fp = fpv->driver_shader;
1361 driver_vp = make_passthrough_vertex_shader(st, GL_FALSE);
1363 if (st->pixel_xfer.pixelmap_enabled) {
1364 sv[1] = st->pixel_xfer.pixelmap_sampler_view;
1369 assert(type == GL_DEPTH);
1370 rbRead = st_renderbuffer(ctx->ReadBuffer->_DepthBuffer);
1371 color = ctx->Current.Attrib[VERT_ATTRIB_COLOR0];
1373 fpv = get_depth_stencil_fp_variant(st, GL_TRUE, GL_FALSE);
1374 driver_fp = fpv->driver_shader;
1376 driver_vp = make_passthrough_vertex_shader(st, GL_TRUE);
1379 /* update fragment program constants */
1380 st_upload_constants(st, fpv->parameters, PIPE_SHADER_FRAGMENT);
1383 if (rbRead->Base.Wrapped)
1384 rbRead = st_renderbuffer(rbRead->Base.Wrapped);
1386 sample_count = rbRead->texture->nr_samples;
1387 /* I believe this would be legal, presumably would need to do a resolve
1388 for color, and for depth/stencil spec says to just use one of the
1389 depth/stencil samples per pixel? Need some transfer clarifications. */
1390 assert(sample_count < 2);
1392 srcFormat = rbRead->texture->format;
1394 if (screen->is_format_supported(screen, srcFormat, st->internal_target,
1396 PIPE_BIND_SAMPLER_VIEW)) {
1397 texFormat = srcFormat;
1400 /* srcFormat can't be used as a texture format */
1401 if (type == GL_DEPTH) {
1402 texFormat = st_choose_format(screen, GL_DEPTH_COMPONENT,
1403 GL_NONE, GL_NONE, st->internal_target,
1404 sample_count, PIPE_BIND_DEPTH_STENCIL);
1405 assert(texFormat != PIPE_FORMAT_NONE);
1408 /* default color format */
1409 texFormat = st_choose_format(screen, GL_RGBA,
1410 GL_NONE, GL_NONE, st->internal_target,
1411 sample_count, PIPE_BIND_SAMPLER_VIEW);
1412 assert(texFormat != PIPE_FORMAT_NONE);
1416 /* Invert src region if needed */
1417 if (st_fb_orientation(ctx->ReadBuffer) == Y_0_TOP) {
1418 srcy = ctx->ReadBuffer->Height - srcy - height;
1419 invertTex = !invertTex;
1422 /* Clip the read region against the src buffer bounds.
1423 * We'll still allocate a temporary buffer/texture for the original
1424 * src region size but we'll only read the region which is on-screen.
1425 * This may mean that we draw garbage pixels into the dest region, but
1432 _mesa_clip_readpixels(ctx, &readX, &readY, &readW, &readH, &pack);
1433 readW = MAX2(0, readW);
1434 readH = MAX2(0, readH);
1436 /* alloc temporary texture */
1437 pt = alloc_texture(st, width, height, texFormat);
1441 sv[0] = st_create_texture_sampler_view(st->pipe, pt);
1443 pipe_resource_reference(&pt, NULL);
1447 /* Make temporary texture which is a copy of the src region.
1449 if (srcFormat == texFormat) {
1450 struct pipe_box src_box;
1451 u_box_2d(readX, readY, readW, readH, &src_box);
1452 /* copy source framebuffer surface into mipmap/texture */
1453 pipe->resource_copy_region(pipe,
1456 pack.SkipPixels, pack.SkipRows, 0, /* dest pos */
1457 rbRead->texture, /* src tex */
1458 rbRead->rtt_level, /* src lvl */
1463 /* CPU-based fallback/conversion */
1464 struct pipe_transfer *ptRead =
1465 pipe_get_transfer(st->pipe, rbRead->texture,
1467 rbRead->rtt_face + rbRead->rtt_slice,
1469 readX, readY, readW, readH);
1470 struct pipe_transfer *ptTex;
1471 enum pipe_transfer_usage transfer_usage;
1473 if (ST_DEBUG & DEBUG_FALLBACK)
1474 debug_printf("%s: fallback processing\n", __FUNCTION__);
1476 if (type == GL_DEPTH && util_format_is_depth_and_stencil(pt->format))
1477 transfer_usage = PIPE_TRANSFER_READ_WRITE;
1479 transfer_usage = PIPE_TRANSFER_WRITE;
1481 ptTex = pipe_get_transfer(st->pipe, pt, 0, 0, transfer_usage,
1482 0, 0, width, height);
1484 /* copy image from ptRead surface to ptTex surface */
1485 if (type == GL_COLOR) {
1486 /* alternate path using get/put_tile() */
1487 GLfloat *buf = (GLfloat *) malloc(width * height * 4 * sizeof(GLfloat));
1488 enum pipe_format readFormat, drawFormat;
1489 readFormat = util_format_linear(rbRead->texture->format);
1490 drawFormat = util_format_linear(pt->format);
1491 pipe_get_tile_rgba_format(pipe, ptRead, 0, 0, readW, readH,
1493 pipe_put_tile_rgba_format(pipe, ptTex, pack.SkipPixels, pack.SkipRows,
1494 readW, readH, drawFormat, buf);
1499 GLuint *buf = (GLuint *) malloc(width * height * sizeof(GLuint));
1500 pipe_get_tile_z(pipe, ptRead, 0, 0, readW, readH, buf);
1501 pipe_put_tile_z(pipe, ptTex, pack.SkipPixels, pack.SkipRows,
1506 pipe->transfer_destroy(pipe, ptRead);
1507 pipe->transfer_destroy(pipe, ptTex);
1510 /* OK, the texture 'pt' contains the src image/pixels. Now draw a
1511 * textured quad with that texture.
1513 draw_textured_quad(ctx, dstx, dsty, ctx->Current.RasterPos[2],
1514 width, height, ctx->Pixel.ZoomX, ctx->Pixel.ZoomY,
1519 color, invertTex, GL_FALSE, GL_FALSE);
1521 pipe_resource_reference(&pt, NULL);
1522 pipe_sampler_view_reference(&sv[0], NULL);
1527 void st_init_drawpixels_functions(struct dd_function_table *functions)
1529 functions->DrawPixels = st_DrawPixels;
1530 functions->CopyPixels = st_CopyPixels;
1535 st_destroy_drawpix(struct st_context *st)
1539 for (i = 0; i < Elements(st->drawpix.shaders); i++) {
1540 if (st->drawpix.shaders[i])
1541 _mesa_reference_fragprog(st->ctx, &st->drawpix.shaders[i], NULL);
1544 st_reference_fragprog(st, &st->pixel_xfer.combined_prog, NULL);
1545 if (st->drawpix.vert_shaders[0])
1546 ureg_free_tokens(st->drawpix.vert_shaders[0]);
1547 if (st->drawpix.vert_shaders[1])
1548 ureg_free_tokens(st->drawpix.vert_shaders[1]);
1551 #endif /* FEATURE_drawpix */