/**************************************************************************
*
- * Copyright 2007 Tungsten Graphics, Inc., Cedar Park, Texas.
+ * Copyright 2007 VMware, Inc.
* All Rights Reserved.
*
* Permission is hereby granted, free of charge, to any person obtaining a
* 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 TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR
+ * IN NO EVENT SHALL VMWARE AND/OR ITS SUPPLIERS BE LIABLE FOR
* ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
#include "main/imports.h"
#include "main/image.h"
#include "main/bufferobj.h"
+#include "main/format_pack.h"
#include "main/macros.h"
+#include "main/mtypes.h"
+#include "main/pack.h"
+#include "main/pbo.h"
+#include "main/readpix.h"
#include "main/texformat.h"
+#include "main/teximage.h"
#include "main/texstore.h"
-#include "shader/program.h"
-#include "shader/prog_print.h"
+#include "main/glformats.h"
+#include "program/program.h"
+#include "program/prog_print.h"
+#include "program/prog_instruction.h"
-#include "st_debug.h"
-#include "st_context.h"
#include "st_atom.h"
#include "st_atom_constbuf.h"
-#include "st_program.h"
#include "st_cb_drawpixels.h"
#include "st_cb_readpixels.h"
#include "st_cb_fbo.h"
+#include "st_context.h"
+#include "st_debug.h"
#include "st_format.h"
+#include "st_program.h"
#include "st_texture.h"
-#include "st_inlines.h"
#include "pipe/p_context.h"
#include "pipe/p_defines.h"
-#include "util/u_inlines.h"
#include "tgsi/tgsi_ureg.h"
-#include "util/u_tile.h"
#include "util/u_draw_quad.h"
#include "util/u_format.h"
+#include "util/u_inlines.h"
#include "util/u_math.h"
-#include "shader/prog_instruction.h"
+#include "util/u_tile.h"
+#include "util/u_upload_mgr.h"
#include "cso_cache/cso_context.h"
inst[0].DstReg.Index == FRAG_RESULT_COLOR &&
inst[0].DstReg.WriteMask == WRITEMASK_XYZW &&
inst[0].SrcReg[0].File == PROGRAM_INPUT &&
- inst[0].SrcReg[0].Index == FRAG_ATTRIB_COL0 &&
+ inst[0].SrcReg[0].Index == VARYING_SLOT_COL0 &&
inst[0].SrcReg[0].Swizzle == SWIZZLE_XYZW) {
return GL_TRUE;
}
}
+/**
+ * Returns a fragment program which implements the current pixel transfer ops.
+ */
+static struct gl_fragment_program *
+get_glsl_pixel_transfer_program(struct st_context *st,
+ struct st_fragment_program *orig)
+{
+ int pixelMaps = 0, scaleAndBias = 0;
+ struct gl_context *ctx = st->ctx;
+ struct st_fragment_program *fp = (struct st_fragment_program *)
+ ctx->Driver.NewProgram(ctx, GL_FRAGMENT_PROGRAM_ARB, 0);
+
+ if (!fp)
+ return NULL;
+
+ if (ctx->Pixel.RedBias != 0.0 || ctx->Pixel.RedScale != 1.0 ||
+ ctx->Pixel.GreenBias != 0.0 || ctx->Pixel.GreenScale != 1.0 ||
+ ctx->Pixel.BlueBias != 0.0 || ctx->Pixel.BlueScale != 1.0 ||
+ ctx->Pixel.AlphaBias != 0.0 || ctx->Pixel.AlphaScale != 1.0) {
+ scaleAndBias = 1;
+ }
+
+ pixelMaps = ctx->Pixel.MapColorFlag;
+
+ if (pixelMaps) {
+ /* create the colormap/texture now if not already done */
+ if (!st->pixel_xfer.pixelmap_texture) {
+ st->pixel_xfer.pixelmap_texture = st_create_color_map_texture(ctx);
+ st->pixel_xfer.pixelmap_sampler_view =
+ st_create_texture_sampler_view(st->pipe,
+ st->pixel_xfer.pixelmap_texture);
+ }
+ }
+
+ get_pixel_transfer_visitor(fp, orig->glsl_to_tgsi,
+ scaleAndBias, pixelMaps);
+
+ return &fp->Base;
+}
+
/**
* Make fragment shader for glDraw/CopyPixels. This shader is made
* by combining the pixel transfer shader with the user-defined shader.
- * \return pointer to Gallium driver fragment shader
+ * \param fpIn the current/incoming fragment program
+ * \param fpOut returns the combined fragment program
*/
-static void *
-combined_drawpix_fragment_program(GLcontext *ctx)
+void
+st_make_drawpix_fragment_program(struct st_context *st,
+ struct gl_fragment_program *fpIn,
+ struct gl_fragment_program **fpOut)
{
- struct st_context *st = st_context(ctx);
- struct st_fragment_program *stfp;
+ struct gl_program *newProg;
+ struct st_fragment_program *stfp = (struct st_fragment_program *) fpIn;
- if (st->pixel_xfer.program->serialNo == st->pixel_xfer.xfer_prog_sn
- && st->fp->serialNo == st->pixel_xfer.user_prog_sn) {
- /* the pixel tranfer program has not changed and the user-defined
- * program has not changed, so re-use the combined program.
- */
- stfp = st->pixel_xfer.combined_prog;
+ if (is_passthrough_program(fpIn)) {
+ newProg = (struct gl_program *) _mesa_clone_fragment_program(st->ctx,
+ &st->pixel_xfer.program->Base);
+ }
+ else if (stfp->glsl_to_tgsi != NULL) {
+ newProg = (struct gl_program *) get_glsl_pixel_transfer_program(st, stfp);
}
else {
- /* Concatenate the pixel transfer program with the current user-
- * defined program.
- */
- if (is_passthrough_program(&st->fp->Base)) {
- stfp = (struct st_fragment_program *)
- _mesa_clone_fragment_program(ctx, &st->pixel_xfer.program->Base);
- }
- else {
#if 0
- printf("Base program:\n");
- _mesa_print_program(&st->fp->Base.Base);
- printf("DrawPix program:\n");
- _mesa_print_program(&st->pixel_xfer.program->Base.Base);
+ /* debug */
+ printf("Base program:\n");
+ _mesa_print_program(&fpIn->Base);
+ printf("DrawPix program:\n");
+ _mesa_print_program(&st->pixel_xfer.program->Base.Base);
#endif
- stfp = (struct st_fragment_program *)
- _mesa_combine_programs(ctx,
- &st->pixel_xfer.program->Base.Base,
- &st->fp->Base.Base);
- }
+ newProg = _mesa_combine_programs(st->ctx,
+ &st->pixel_xfer.program->Base.Base,
+ &fpIn->Base);
+ }
#if 0
- {
- struct gl_program *p = &stfp->Base.Base;
- printf("Combined DrawPixels program:\n");
- _mesa_print_program(p);
- printf("InputsRead: 0x%x\n", p->InputsRead);
- printf("OutputsWritten: 0x%x\n", p->OutputsWritten);
- _mesa_print_parameter_list(p->Parameters);
- }
+ /* debug */
+ printf("Combined DrawPixels program:\n");
+ _mesa_print_program(newProg);
+ printf("InputsRead: 0x%x\n", newProg->InputsRead);
+ printf("OutputsWritten: 0x%x\n", newProg->OutputsWritten);
+ _mesa_print_parameter_list(newProg->Parameters);
#endif
- /* translate to TGSI tokens */
- st_translate_fragment_program(st, stfp);
-
- /* save new program, update serial numbers */
- st->pixel_xfer.xfer_prog_sn = st->pixel_xfer.program->serialNo;
- st->pixel_xfer.user_prog_sn = st->fp->serialNo;
- st->pixel_xfer.combined_prog_sn = stfp->serialNo;
- /* can't reference new program directly, already have a reference on it */
- st_reference_fragprog(st, &st->pixel_xfer.combined_prog, NULL);
- st->pixel_xfer.combined_prog = stfp;
- }
-
- /* Ideally we'd have updated the pipe constants during the normal
- * st/atom mechanism. But we can't since this is specific to glDrawPixels.
- */
- st_upload_constants(st, stfp->Base.Base.Parameters, PIPE_SHADER_FRAGMENT);
-
- return stfp->driver_shader;
+ *fpOut = (struct gl_fragment_program *) newProg;
}
/**
- * Create fragment shader that does a TEX() instruction to get a Z
- * value, then writes to FRAG_RESULT_DEPTH.
+ * Create fragment program that does a TEX() instruction to get a Z and/or
+ * stencil value value, then writes to FRAG_RESULT_DEPTH/FRAG_RESULT_STENCIL.
+ * Used for glDrawPixels(GL_DEPTH_COMPONENT / GL_STENCIL_INDEX).
* Pass fragment color through as-is.
- * \return pointer to the Gallium driver fragment shader
+ * \return pointer to the gl_fragment program
*/
-static void *
-make_fragment_shader_z(struct st_context *st)
+struct gl_fragment_program *
+st_make_drawpix_z_stencil_program(struct st_context *st,
+ GLboolean write_depth,
+ GLboolean write_stencil)
{
- GLcontext *ctx = st->ctx;
+ struct gl_context *ctx = st->ctx;
struct gl_program *p;
+ struct gl_fragment_program *fp;
GLuint ic = 0;
+ const GLuint shaderIndex = write_depth * 2 + write_stencil;
- if (st->drawpix.z_shader) {
- return st->drawpix.z_shader->driver_shader;
+ assert(shaderIndex < Elements(st->drawpix.shaders));
+
+ if (st->drawpix.shaders[shaderIndex]) {
+ /* already have the proper shader */
+ return st->drawpix.shaders[shaderIndex];
}
/*
if (!p)
return NULL;
- p->NumInstructions = 3;
+ p->NumInstructions = write_depth ? 3 : 1;
+ p->NumInstructions += write_stencil ? 1 : 0;
p->Instructions = _mesa_alloc_instructions(p->NumInstructions);
if (!p->Instructions) {
}
_mesa_init_instructions(p->Instructions, p->NumInstructions);
- /* TEX result.depth, fragment.texcoord[0], texture[0], 2D; */
- p->Instructions[ic].Opcode = OPCODE_TEX;
- p->Instructions[ic].DstReg.File = PROGRAM_OUTPUT;
- p->Instructions[ic].DstReg.Index = FRAG_RESULT_DEPTH;
- p->Instructions[ic].DstReg.WriteMask = WRITEMASK_Z;
- p->Instructions[ic].SrcReg[0].File = PROGRAM_INPUT;
- p->Instructions[ic].SrcReg[0].Index = FRAG_ATTRIB_TEX0;
- p->Instructions[ic].TexSrcUnit = 0;
- p->Instructions[ic].TexSrcTarget = TEXTURE_2D_INDEX;
- ic++;
-
- /* MOV result.color, fragment.color */
- p->Instructions[ic].Opcode = OPCODE_MOV;
- p->Instructions[ic].DstReg.File = PROGRAM_OUTPUT;
- p->Instructions[ic].DstReg.Index = FRAG_RESULT_COLOR;
- p->Instructions[ic].SrcReg[0].File = PROGRAM_INPUT;
- p->Instructions[ic].SrcReg[0].Index = FRAG_ATTRIB_COL0;
- ic++;
+ if (write_depth) {
+ /* TEX result.depth, fragment.texcoord[0], texture[0], 2D; */
+ p->Instructions[ic].Opcode = OPCODE_TEX;
+ p->Instructions[ic].DstReg.File = PROGRAM_OUTPUT;
+ p->Instructions[ic].DstReg.Index = FRAG_RESULT_DEPTH;
+ p->Instructions[ic].DstReg.WriteMask = WRITEMASK_Z;
+ p->Instructions[ic].SrcReg[0].File = PROGRAM_INPUT;
+ p->Instructions[ic].SrcReg[0].Index = VARYING_SLOT_TEX0;
+ p->Instructions[ic].TexSrcUnit = 0;
+ p->Instructions[ic].TexSrcTarget = TEXTURE_2D_INDEX;
+ ic++;
+ /* MOV result.color, fragment.color; */
+ p->Instructions[ic].Opcode = OPCODE_MOV;
+ p->Instructions[ic].DstReg.File = PROGRAM_OUTPUT;
+ p->Instructions[ic].DstReg.Index = FRAG_RESULT_COLOR;
+ p->Instructions[ic].SrcReg[0].File = PROGRAM_INPUT;
+ p->Instructions[ic].SrcReg[0].Index = VARYING_SLOT_COL0;
+ ic++;
+ }
+
+ if (write_stencil) {
+ /* TEX result.stencil, fragment.texcoord[0], texture[0], 2D; */
+ p->Instructions[ic].Opcode = OPCODE_TEX;
+ p->Instructions[ic].DstReg.File = PROGRAM_OUTPUT;
+ p->Instructions[ic].DstReg.Index = FRAG_RESULT_STENCIL;
+ p->Instructions[ic].DstReg.WriteMask = WRITEMASK_Y;
+ p->Instructions[ic].SrcReg[0].File = PROGRAM_INPUT;
+ p->Instructions[ic].SrcReg[0].Index = VARYING_SLOT_TEX0;
+ p->Instructions[ic].TexSrcUnit = 1;
+ p->Instructions[ic].TexSrcTarget = TEXTURE_2D_INDEX;
+ ic++;
+ }
/* END; */
p->Instructions[ic++].Opcode = OPCODE_END;
assert(ic == p->NumInstructions);
- p->InputsRead = FRAG_BIT_TEX0 | FRAG_BIT_COL0;
- p->OutputsWritten = (1 << FRAG_RESULT_COLOR) | (1 << FRAG_RESULT_DEPTH);
- p->SamplersUsed = 0x1; /* sampler 0 (bit 0) is used */
+ p->InputsRead = VARYING_BIT_TEX0 | VARYING_BIT_COL0;
+ p->OutputsWritten = 0;
+ if (write_depth) {
+ p->OutputsWritten |= BITFIELD64_BIT(FRAG_RESULT_DEPTH);
+ p->OutputsWritten |= BITFIELD64_BIT(FRAG_RESULT_COLOR);
+ }
+ if (write_stencil)
+ p->OutputsWritten |= BITFIELD64_BIT(FRAG_RESULT_STENCIL);
- st->drawpix.z_shader = (struct st_fragment_program *) p;
- st_translate_fragment_program(st, st->drawpix.z_shader);
+ p->SamplersUsed = 0x1; /* sampler 0 (bit 0) is used */
+ if (write_stencil)
+ p->SamplersUsed |= 1 << 1;
- return st->drawpix.z_shader->driver_shader;
-}
+ fp = (struct gl_fragment_program *) p;
+ /* save the new shader */
+ st->drawpix.shaders[shaderIndex] = fp;
+
+ return fp;
+}
/**
make_passthrough_vertex_shader(struct st_context *st,
GLboolean passColor)
{
+ const unsigned texcoord_semantic = st->needs_texcoord_semantic ?
+ TGSI_SEMANTIC_TEXCOORD : TGSI_SEMANTIC_GENERIC;
+
if (!st->drawpix.vert_shaders[passColor]) {
- struct ureg_program *ureg =
- ureg_create( TGSI_PROCESSOR_VERTEX );
+ struct ureg_program *ureg = ureg_create( TGSI_PROCESSOR_VERTEX );
if (ureg == NULL)
return NULL;
/* MOV result.texcoord0, vertex.attr[1]; */
ureg_MOV(ureg,
- ureg_DECL_output( ureg, TGSI_SEMANTIC_GENERIC, 0 ),
+ ureg_DECL_output( ureg, texcoord_semantic, 0 ),
ureg_DECL_vs_input( ureg, 1 ));
if (passColor) {
/**
* Return a texture internalFormat for drawing/copying an image
- * of the given type.
+ * of the given format and type.
*/
static GLenum
-base_format(GLenum format)
+internal_format(struct gl_context *ctx, GLenum format, GLenum type)
{
switch (format) {
case GL_DEPTH_COMPONENT:
- return GL_DEPTH_COMPONENT;
+ switch (type) {
+ case GL_UNSIGNED_SHORT:
+ return GL_DEPTH_COMPONENT16;
+
+ case GL_UNSIGNED_INT:
+ return GL_DEPTH_COMPONENT32;
+
+ case GL_FLOAT:
+ if (ctx->Extensions.ARB_depth_buffer_float)
+ return GL_DEPTH_COMPONENT32F;
+ else
+ return GL_DEPTH_COMPONENT;
+
+ default:
+ return GL_DEPTH_COMPONENT;
+ }
+
case GL_DEPTH_STENCIL:
- return GL_DEPTH_STENCIL;
+ switch (type) {
+ case GL_FLOAT_32_UNSIGNED_INT_24_8_REV:
+ return GL_DEPTH32F_STENCIL8;
+
+ case GL_UNSIGNED_INT_24_8:
+ default:
+ return GL_DEPTH24_STENCIL8;
+ }
+
case GL_STENCIL_INDEX:
return GL_STENCIL_INDEX;
+
default:
- return GL_RGBA;
+ if (_mesa_is_enum_format_integer(format)) {
+ switch (type) {
+ case GL_BYTE:
+ return GL_RGBA8I;
+ case GL_UNSIGNED_BYTE:
+ return GL_RGBA8UI;
+ case GL_SHORT:
+ return GL_RGBA16I;
+ case GL_UNSIGNED_SHORT:
+ return GL_RGBA16UI;
+ case GL_INT:
+ return GL_RGBA32I;
+ case GL_UNSIGNED_INT:
+ return GL_RGBA32UI;
+ default:
+ assert(0 && "Unexpected type in internal_format()");
+ return GL_RGBA_INTEGER;
+ }
+ }
+ else {
+ switch (type) {
+ case GL_UNSIGNED_BYTE:
+ case GL_UNSIGNED_INT_8_8_8_8:
+ case GL_UNSIGNED_INT_8_8_8_8_REV:
+ default:
+ return GL_RGBA8;
+
+ case GL_UNSIGNED_BYTE_3_3_2:
+ case GL_UNSIGNED_BYTE_2_3_3_REV:
+ return GL_R3_G3_B2;
+
+ case GL_UNSIGNED_SHORT_4_4_4_4:
+ case GL_UNSIGNED_SHORT_4_4_4_4_REV:
+ return GL_RGBA4;
+
+ case GL_UNSIGNED_SHORT_5_6_5:
+ case GL_UNSIGNED_SHORT_5_6_5_REV:
+ return GL_RGB565;
+
+ case GL_UNSIGNED_SHORT_5_5_5_1:
+ case GL_UNSIGNED_SHORT_1_5_5_5_REV:
+ return GL_RGB5_A1;
+
+ case GL_UNSIGNED_INT_10_10_10_2:
+ case GL_UNSIGNED_INT_2_10_10_10_REV:
+ return GL_RGB10_A2;
+
+ case GL_UNSIGNED_SHORT:
+ case GL_UNSIGNED_INT:
+ return GL_RGBA16;
+
+ case GL_BYTE:
+ return
+ ctx->Extensions.EXT_texture_snorm ? GL_RGBA8_SNORM : GL_RGBA8;
+
+ case GL_SHORT:
+ case GL_INT:
+ return
+ ctx->Extensions.EXT_texture_snorm ? GL_RGBA16_SNORM : GL_RGBA16;
+
+ case GL_HALF_FLOAT_ARB:
+ return
+ ctx->Extensions.ARB_texture_float ? GL_RGBA16F :
+ ctx->Extensions.EXT_texture_snorm ? GL_RGBA16_SNORM : GL_RGBA16;
+
+ case GL_FLOAT:
+ case GL_DOUBLE:
+ return
+ ctx->Extensions.ARB_texture_float ? GL_RGBA32F :
+ ctx->Extensions.EXT_texture_snorm ? GL_RGBA16_SNORM : GL_RGBA16;
+
+ case GL_UNSIGNED_INT_5_9_9_9_REV:
+ assert(ctx->Extensions.EXT_texture_shared_exponent);
+ return GL_RGB9_E5;
+
+ case GL_UNSIGNED_INT_10F_11F_11F_REV:
+ assert(ctx->Extensions.EXT_packed_float);
+ return GL_R11F_G11F_B10F;
+ }
+ }
}
}
*/
static struct pipe_resource *
alloc_texture(struct st_context *st, GLsizei width, GLsizei height,
- enum pipe_format texFormat)
+ enum pipe_format texFormat, unsigned bind)
{
- struct pipe_context *pipe = st->pipe;
- struct pipe_screen *screen = pipe->screen;
struct pipe_resource *pt;
- int ptw, pth;
- ptw = width;
- pth = height;
-
- /* Need to use POT texture? */
- if (!screen->get_param(screen, PIPE_CAP_NPOT_TEXTURES)) {
- int l2pt, maxSize;
-
- l2pt = util_logbase2(width);
- if (1 << l2pt != width) {
- ptw = 1 << (l2pt + 1);
- }
-
- l2pt = util_logbase2(height);
- if (1 << l2pt != height) {
- pth = 1 << (l2pt + 1);
- }
-
- /* Check against maximum texture size */
- maxSize = 1 << (pipe->screen->get_param(pipe->screen,
- PIPE_CAP_MAX_TEXTURE_2D_LEVELS) - 1);
- assert(ptw <= maxSize);
- assert(pth <= maxSize);
- }
-
- pt = st_texture_create(st, PIPE_TEXTURE_2D, texFormat, 0,
- ptw, pth, 1, PIPE_BIND_SAMPLER_VIEW);
+ pt = st_texture_create(st, st->internal_target, texFormat, 0,
+ width, height, 1, 1, 0, bind);
return pt;
}
const struct gl_pixelstore_attrib *unpack,
const GLvoid *pixels)
{
- GLcontext *ctx = st->ctx;
+ struct gl_context *ctx = st->ctx;
struct pipe_context *pipe = st->pipe;
- gl_format mformat;
+ mesa_format mformat;
struct pipe_resource *pt;
enum pipe_format pipeFormat;
- GLuint cpp;
- GLenum baseFormat;
+ GLenum baseInternalFormat;
- baseFormat = base_format(format);
+ /* Choose a pixel format for the temp texture which will hold the
+ * image to draw.
+ */
+ pipeFormat = st_choose_matching_format(st, PIPE_BIND_SAMPLER_VIEW,
+ format, type, unpack->SwapBytes);
- mformat = st_ChooseTextureFormat(ctx, baseFormat, format, type);
- assert(mformat);
+ if (pipeFormat == PIPE_FORMAT_NONE) {
+ /* Use the generic approach. */
+ GLenum intFormat = internal_format(ctx, format, type);
- pipeFormat = st_mesa_format_to_pipe_format(mformat);
- assert(pipeFormat);
- cpp = util_format_get_blocksize(pipeFormat);
+ pipeFormat = st_choose_format(st, intFormat, format, type,
+ PIPE_TEXTURE_2D, 0, PIPE_BIND_SAMPLER_VIEW,
+ FALSE);
+ assert(pipeFormat != PIPE_FORMAT_NONE);
+ }
+
+ mformat = st_pipe_format_to_mesa_format(pipeFormat);
+ baseInternalFormat = _mesa_get_format_base_format(mformat);
pixels = _mesa_map_pbo_source(ctx, unpack, pixels);
if (!pixels)
return NULL;
/* alloc temporary texture */
- pt = alloc_texture(st, width, height, pipeFormat);
+ pt = alloc_texture(st, width, height, pipeFormat, PIPE_BIND_SAMPLER_VIEW);
if (!pt) {
_mesa_unmap_pbo_source(ctx, unpack);
return NULL;
{
struct pipe_transfer *transfer;
- static const GLuint dstImageOffsets = 0;
GLboolean success;
GLubyte *dest;
const GLbitfield imageTransferStateSave = ctx->_ImageTransferState;
/* we'll do pixel transfer in a fragment shader */
ctx->_ImageTransferState = 0x0;
- transfer = st_no_flush_get_tex_transfer(st, pt, 0, 0, 0,
- PIPE_TRANSFER_WRITE, 0, 0,
- width, height);
-
/* map texture transfer */
- dest = pipe_transfer_map(pipe, transfer);
+ dest = pipe_transfer_map(pipe, pt, 0, 0,
+ PIPE_TRANSFER_WRITE, 0, 0,
+ width, height, &transfer);
/* Put image into texture transfer.
* the texture. We deal with that with texcoords.
*/
success = _mesa_texstore(ctx, 2, /* dims */
- baseFormat, /* baseInternalFormat */
- mformat, /* gl_format */
- dest, /* dest */
- 0, 0, 0, /* dstX/Y/Zoffset */
+ baseInternalFormat, /* baseInternalFormat */
+ mformat, /* mesa_format */
transfer->stride, /* dstRowStride, bytes */
- &dstImageOffsets, /* dstImageOffsets */
+ &dest, /* destSlices */
width, height, 1, /* size */
format, type, /* src format/type */
pixels, /* data source */
/* unmap */
pipe_transfer_unmap(pipe, transfer);
- pipe->transfer_destroy(pipe, transfer);
assert(success);
* \param invertTex if true, flip texcoords vertically
*/
static void
-draw_quad(GLcontext *ctx, GLfloat x0, GLfloat y0, GLfloat z,
+draw_quad(struct gl_context *ctx, GLfloat x0, GLfloat y0, GLfloat z,
GLfloat x1, GLfloat y1, const GLfloat *color,
GLboolean invertTex, GLfloat maxXcoord, GLfloat maxYcoord)
{
struct st_context *st = st_context(ctx);
struct pipe_context *pipe = st->pipe;
- GLfloat verts[4][3][4]; /* four verts, three attribs, XYZW */
+ GLfloat (*verts)[3][4]; /* four verts, three attribs, XYZW */
+ struct pipe_resource *buf = NULL;
+ unsigned offset;
+
+ if (u_upload_alloc(st->uploader, 0, 4 * sizeof(verts[0]), &offset,
+ &buf, (void **) &verts) != PIPE_OK) {
+ return;
+ }
/* setup vertex data */
{
}
}
- {
- struct pipe_resource *buf;
-
- /* allocate/load buffer object with vertex data */
- buf = pipe_buffer_create(pipe->screen,
- PIPE_BIND_VERTEX_BUFFER,
- sizeof(verts));
- st_no_flush_pipe_buffer_write(st, buf, 0, sizeof(verts), verts);
-
- util_draw_vertex_buffer(pipe, buf, 0,
- PIPE_PRIM_QUADS,
- 4, /* verts */
- 3); /* attribs/vert */
- pipe_resource_reference(&buf, NULL);
- }
+ u_upload_unmap(st->uploader);
+ util_draw_vertex_buffer(pipe, st->cso_context, buf,
+ cso_get_aux_vertex_buffer_slot(st->cso_context),
+ offset,
+ PIPE_PRIM_QUADS,
+ 4, /* verts */
+ 3); /* attribs/vert */
+ pipe_resource_reference(&buf, NULL);
}
static void
-draw_textured_quad(GLcontext *ctx, GLint x, GLint y, GLfloat z,
+draw_textured_quad(struct gl_context *ctx, GLint x, GLint y, GLfloat z,
GLsizei width, GLsizei height,
GLfloat zoomX, GLfloat zoomY,
- struct pipe_sampler_view *sv,
+ struct pipe_sampler_view **sv,
+ int num_sampler_view,
void *driver_vp,
void *driver_fp,
const GLfloat *color,
- GLboolean invertTex)
+ GLboolean invertTex,
+ GLboolean write_depth, GLboolean write_stencil)
{
struct st_context *st = st_context(ctx);
struct pipe_context *pipe = st->pipe;
struct cso_context *cso = st->cso_context;
GLfloat x0, y0, x1, y1;
GLsizei maxSize;
+ boolean normalized = sv[0]->texture->target != PIPE_TEXTURE_RECT;
/* limit checks */
/* XXX if DrawPixels image is larger than max texture size, break
* it up into chunks.
*/
- maxSize = 1 << (pipe->screen->get_param(pipe->screen, PIPE_CAP_MAX_TEXTURE_2D_LEVELS) - 1);
+ maxSize = 1 << (pipe->screen->get_param(pipe->screen,
+ PIPE_CAP_MAX_TEXTURE_2D_LEVELS) - 1);
assert(width <= maxSize);
assert(height <= maxSize);
cso_save_rasterizer(cso);
cso_save_viewport(cso);
- cso_save_samplers(cso);
- cso_save_fragment_sampler_views(cso);
+ cso_save_samplers(cso, PIPE_SHADER_FRAGMENT);
+ cso_save_sampler_views(cso, PIPE_SHADER_FRAGMENT);
cso_save_fragment_shader(cso);
+ cso_save_stream_outputs(cso);
cso_save_vertex_shader(cso);
+ cso_save_geometry_shader(cso);
cso_save_vertex_elements(cso);
+ cso_save_aux_vertex_buffer_slot(cso);
+ if (write_stencil) {
+ cso_save_depth_stencil_alpha(cso);
+ cso_save_blend(cso);
+ }
/* rasterizer state: just scissor */
{
struct pipe_rasterizer_state rasterizer;
memset(&rasterizer, 0, sizeof(rasterizer));
- rasterizer.gl_rasterization_rules = 1;
- rasterizer.scissor = ctx->Scissor.Enabled;
+ rasterizer.clamp_fragment_color = !st->clamp_frag_color_in_shader &&
+ ctx->Color._ClampFragmentColor;
+ rasterizer.half_pixel_center = 1;
+ rasterizer.bottom_edge_rule = 1;
+ rasterizer.depth_clip = !ctx->Transform.DepthClamp;
+ rasterizer.scissor = ctx->Scissor.EnableFlags;
cso_set_rasterizer(cso, &rasterizer);
}
+ if (write_stencil) {
+ /* Stencil writing bypasses the normal fragment pipeline to
+ * disable color writing and set stencil test to always pass.
+ */
+ struct pipe_depth_stencil_alpha_state dsa;
+ struct pipe_blend_state blend;
+
+ /* depth/stencil */
+ memset(&dsa, 0, sizeof(dsa));
+ dsa.stencil[0].enabled = 1;
+ dsa.stencil[0].func = PIPE_FUNC_ALWAYS;
+ dsa.stencil[0].writemask = ctx->Stencil.WriteMask[0] & 0xff;
+ dsa.stencil[0].zpass_op = PIPE_STENCIL_OP_REPLACE;
+ if (write_depth) {
+ /* writing depth+stencil: depth test always passes */
+ dsa.depth.enabled = 1;
+ dsa.depth.writemask = ctx->Depth.Mask;
+ dsa.depth.func = PIPE_FUNC_ALWAYS;
+ }
+ cso_set_depth_stencil_alpha(cso, &dsa);
+
+ /* blend (colormask) */
+ memset(&blend, 0, sizeof(blend));
+ cso_set_blend(cso, &blend);
+ }
+
/* fragment shader state: TEX lookup program */
cso_set_fragment_shader_handle(cso, driver_fp);
/* vertex shader state: position + texcoord pass-through */
cso_set_vertex_shader_handle(cso, driver_vp);
+ /* geometry shader state: disabled */
+ cso_set_geometry_shader_handle(cso, NULL);
/* texture sampling state: */
{
sampler.min_img_filter = PIPE_TEX_FILTER_NEAREST;
sampler.min_mip_filter = PIPE_TEX_MIPFILTER_NONE;
sampler.mag_img_filter = PIPE_TEX_FILTER_NEAREST;
- sampler.normalized_coords = 1;
+ sampler.normalized_coords = normalized;
- cso_single_sampler(cso, 0, &sampler);
- if (st->pixel_xfer.pixelmap_enabled) {
- cso_single_sampler(cso, 1, &sampler);
+ cso_single_sampler(cso, PIPE_SHADER_FRAGMENT, 0, &sampler);
+ if (num_sampler_view > 1) {
+ cso_single_sampler(cso, PIPE_SHADER_FRAGMENT, 1, &sampler);
}
- cso_single_sampler_done(cso);
+ cso_single_sampler_done(cso, PIPE_SHADER_FRAGMENT);
}
/* viewport state: viewport matching window dims */
vp.scale[0] = 0.5f * w;
vp.scale[1] = -0.5f * h;
vp.scale[2] = 0.5f;
- vp.scale[3] = 1.0f;
vp.translate[0] = 0.5f * w;
vp.translate[1] = 0.5f * h;
vp.translate[2] = 0.5f;
- vp.translate[3] = 0.0f;
cso_set_viewport(cso, &vp);
}
cso_set_vertex_elements(cso, 3, st->velems_util_draw);
+ cso_set_stream_outputs(st->cso_context, 0, NULL, NULL);
/* texture state: */
- if (st->pixel_xfer.pixelmap_enabled) {
- struct pipe_sampler_view *sampler_views[2];
- sampler_views[0] = sv;
- sampler_views[1] = st->pixel_xfer.pixelmap_sampler_view;
- cso_set_fragment_sampler_views(cso, 2, sampler_views);
- }
- else {
- cso_set_fragment_sampler_views(cso, 1, &sv);
- }
+ cso_set_sampler_views(cso, PIPE_SHADER_FRAGMENT, num_sampler_view, sv);
/* Compute Gallium window coords (y=0=top) with pixel zoom.
* Recall that these coords are transformed by the current
y1 = y + height * ctx->Pixel.ZoomY;
/* convert Z from [0,1] to [-1,-1] to match viewport Z scale/bias */
- z = z * 2.0 - 1.0;
+ z = z * 2.0f - 1.0f;
draw_quad(ctx, x0, y0, z, x1, y1, color, invertTex,
- (GLfloat) width / sv->texture->width0,
- (GLfloat) height / sv->texture->height0);
+ normalized ? ((GLfloat) width / sv[0]->texture->width0) : (GLfloat)width,
+ normalized ? ((GLfloat) height / sv[0]->texture->height0) : (GLfloat)height);
/* restore state */
cso_restore_rasterizer(cso);
cso_restore_viewport(cso);
- cso_restore_samplers(cso);
- cso_restore_fragment_sampler_views(cso);
+ cso_restore_samplers(cso, PIPE_SHADER_FRAGMENT);
+ cso_restore_sampler_views(cso, PIPE_SHADER_FRAGMENT);
cso_restore_fragment_shader(cso);
cso_restore_vertex_shader(cso);
+ cso_restore_geometry_shader(cso);
cso_restore_vertex_elements(cso);
+ cso_restore_aux_vertex_buffer_slot(cso);
+ cso_restore_stream_outputs(cso);
+ if (write_stencil) {
+ cso_restore_depth_stencil_alpha(cso);
+ cso_restore_blend(cso);
+ }
}
+/**
+ * Software fallback to do glDrawPixels(GL_STENCIL_INDEX) when we
+ * can't use a fragment shader to write stencil values.
+ */
static void
-draw_stencil_pixels(GLcontext *ctx, GLint x, GLint y,
+draw_stencil_pixels(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)
enum pipe_transfer_usage usage;
struct pipe_transfer *pt;
const GLboolean zoom = ctx->Pixel.ZoomX != 1.0 || ctx->Pixel.ZoomY != 1.0;
- GLint skipPixels;
ubyte *stmap;
struct gl_pixelstore_attrib clippedUnpack = *unpack;
+ GLubyte *sValues;
+ GLuint *zValues;
if (!zoom) {
if (!_mesa_clip_drawpixels(ctx, &x, &y, &width, &height,
y = ctx->DrawBuffer->Height - y - height;
}
- if(format != GL_DEPTH_STENCIL &&
- util_format_get_component_bits(strb->format, UTIL_FORMAT_COLORSPACE_ZS, 0) != 0)
+ if (format == GL_STENCIL_INDEX &&
+ _mesa_is_format_packed_depth_stencil(strb->Base.Format)) {
+ /* writing stencil to a combined depth+stencil buffer */
usage = PIPE_TRANSFER_READ_WRITE;
- else
+ }
+ else {
usage = PIPE_TRANSFER_WRITE;
+ }
- pt = st_cond_flush_get_tex_transfer(st_context(ctx), strb->texture, 0, 0, 0,
- usage, x, y,
- width, height);
-
- stmap = pipe_transfer_map(pipe, pt);
+ stmap = pipe_transfer_map(pipe, strb->texture,
+ strb->surface->u.tex.level,
+ strb->surface->u.tex.first_layer,
+ usage, x, y,
+ width, height, &pt);
pixels = _mesa_map_pbo_source(ctx, &clippedUnpack, pixels);
assert(pixels);
- /* if width > MAX_WIDTH, have to process image in chunks */
- skipPixels = 0;
- while (skipPixels < width) {
- const GLint spanX = skipPixels;
- const GLint spanWidth = MIN2(width - skipPixels, MAX_WIDTH);
+ sValues = malloc(width * sizeof(GLubyte));
+ zValues = malloc(width * sizeof(GLuint));
+
+ if (sValues && zValues) {
GLint row;
for (row = 0; row < height; row++) {
- GLubyte sValues[MAX_WIDTH];
- GLuint zValues[MAX_WIDTH];
+ GLfloat *zValuesFloat = (GLfloat*)zValues;
GLenum destType = GL_UNSIGNED_BYTE;
const GLvoid *source = _mesa_image_address2d(&clippedUnpack, pixels,
width, height,
format, type,
- row, skipPixels);
- _mesa_unpack_stencil_span(ctx, spanWidth, destType, sValues,
+ row, 0);
+ _mesa_unpack_stencil_span(ctx, width, destType, sValues,
type, source, &clippedUnpack,
ctx->_ImageTransferState);
if (format == GL_DEPTH_STENCIL) {
- _mesa_unpack_depth_span(ctx, spanWidth, GL_UNSIGNED_INT, zValues,
+ GLenum ztype =
+ pt->resource->format == PIPE_FORMAT_Z32_FLOAT_S8X24_UINT ?
+ GL_FLOAT : GL_UNSIGNED_INT;
+
+ _mesa_unpack_depth_span(ctx, width, ztype, zValues,
(1 << 24) - 1, type, source,
&clippedUnpack);
}
/* now pack the stencil (and Z) values in the dest format */
switch (pt->resource->format) {
- case PIPE_FORMAT_S8_USCALED:
+ case PIPE_FORMAT_S8_UINT:
{
- ubyte *dest = stmap + spanY * pt->stride + spanX;
+ ubyte *dest = stmap + spanY * pt->stride;
assert(usage == PIPE_TRANSFER_WRITE);
- memcpy(dest, sValues, spanWidth);
+ memcpy(dest, sValues, width);
}
break;
- case PIPE_FORMAT_Z24_UNORM_S8_USCALED:
+ case PIPE_FORMAT_Z24_UNORM_S8_UINT:
if (format == GL_DEPTH_STENCIL) {
- uint *dest = (uint *) (stmap + spanY * pt->stride + spanX*4);
+ uint *dest = (uint *) (stmap + spanY * pt->stride);
GLint k;
assert(usage == PIPE_TRANSFER_WRITE);
- for (k = 0; k < spanWidth; k++) {
+ for (k = 0; k < width; k++) {
dest[k] = zValues[k] | (sValues[k] << 24);
}
}
else {
- uint *dest = (uint *) (stmap + spanY * pt->stride + spanX*4);
+ uint *dest = (uint *) (stmap + spanY * pt->stride);
GLint k;
assert(usage == PIPE_TRANSFER_READ_WRITE);
- for (k = 0; k < spanWidth; k++) {
+ for (k = 0; k < width; k++) {
dest[k] = (dest[k] & 0xffffff) | (sValues[k] << 24);
}
}
break;
- case PIPE_FORMAT_S8_USCALED_Z24_UNORM:
+ case PIPE_FORMAT_S8_UINT_Z24_UNORM:
if (format == GL_DEPTH_STENCIL) {
- uint *dest = (uint *) (stmap + spanY * pt->stride + spanX*4);
+ uint *dest = (uint *) (stmap + spanY * pt->stride);
GLint k;
assert(usage == PIPE_TRANSFER_WRITE);
- for (k = 0; k < spanWidth; k++) {
+ for (k = 0; k < width; k++) {
dest[k] = (zValues[k] << 8) | (sValues[k] & 0xff);
}
}
else {
- uint *dest = (uint *) (stmap + spanY * pt->stride + spanX*4);
+ uint *dest = (uint *) (stmap + spanY * pt->stride);
GLint k;
assert(usage == PIPE_TRANSFER_READ_WRITE);
- for (k = 0; k < spanWidth; k++) {
+ for (k = 0; k < width; k++) {
dest[k] = (dest[k] & 0xffffff00) | (sValues[k] & 0xff);
}
}
break;
+ case PIPE_FORMAT_Z32_FLOAT_S8X24_UINT:
+ if (format == GL_DEPTH_STENCIL) {
+ uint *dest = (uint *) (stmap + spanY * pt->stride);
+ GLfloat *destf = (GLfloat*)dest;
+ GLint k;
+ assert(usage == PIPE_TRANSFER_WRITE);
+ for (k = 0; k < width; k++) {
+ destf[k*2] = zValuesFloat[k];
+ dest[k*2+1] = sValues[k] & 0xff;
+ }
+ }
+ else {
+ uint *dest = (uint *) (stmap + spanY * pt->stride);
+ GLint k;
+ assert(usage == PIPE_TRANSFER_READ_WRITE);
+ for (k = 0; k < width; k++) {
+ dest[k*2+1] = sValues[k] & 0xff;
+ }
+ }
+ break;
default:
assert(0);
}
}
}
- skipPixels += spanWidth;
}
+ else {
+ _mesa_error(ctx, GL_OUT_OF_MEMORY, "glDrawPixels()");
+ }
+
+ free(sValues);
+ free(zValues);
_mesa_unmap_pbo_source(ctx, &clippedUnpack);
/* unmap the stencil buffer */
pipe_transfer_unmap(pipe, pt);
- pipe->transfer_destroy(pipe, pt);
+}
+
+
+/**
+ * Get fragment program variant for a glDrawPixels or glCopyPixels
+ * command for RGBA data.
+ */
+static struct st_fp_variant *
+get_color_fp_variant(struct st_context *st)
+{
+ struct gl_context *ctx = st->ctx;
+ struct st_fp_variant_key key;
+ struct st_fp_variant *fpv;
+
+ memset(&key, 0, sizeof(key));
+
+ key.st = st;
+ key.drawpixels = 1;
+ key.scaleAndBias = (ctx->Pixel.RedBias != 0.0 ||
+ ctx->Pixel.RedScale != 1.0 ||
+ ctx->Pixel.GreenBias != 0.0 ||
+ ctx->Pixel.GreenScale != 1.0 ||
+ ctx->Pixel.BlueBias != 0.0 ||
+ ctx->Pixel.BlueScale != 1.0 ||
+ ctx->Pixel.AlphaBias != 0.0 ||
+ ctx->Pixel.AlphaScale != 1.0);
+ key.pixelMaps = ctx->Pixel.MapColorFlag;
+ key.clamp_color = st->clamp_frag_color_in_shader &&
+ st->ctx->Color._ClampFragmentColor;
+
+ fpv = st_get_fp_variant(st, st->fp, &key);
+
+ return fpv;
+}
+
+
+/**
+ * Get fragment program variant for a glDrawPixels or glCopyPixels
+ * command for depth/stencil data.
+ */
+static struct st_fp_variant *
+get_depth_stencil_fp_variant(struct st_context *st, GLboolean write_depth,
+ GLboolean write_stencil)
+{
+ struct st_fp_variant_key key;
+ struct st_fp_variant *fpv;
+
+ memset(&key, 0, sizeof(key));
+
+ key.st = st;
+ key.drawpixels = 1;
+ key.drawpixels_z = write_depth;
+ key.drawpixels_stencil = write_stencil;
+
+ fpv = st_get_fp_variant(st, st->fp, &key);
+
+ return fpv;
+}
+
+
+/**
+ * Clamp glDrawPixels width and height to the maximum texture size.
+ */
+static void
+clamp_size(struct pipe_context *pipe, GLsizei *width, GLsizei *height,
+ struct gl_pixelstore_attrib *unpack)
+{
+ const int maxSize =
+ 1 << (pipe->screen->get_param(pipe->screen,
+ PIPE_CAP_MAX_TEXTURE_2D_LEVELS) - 1);
+
+ if (*width > maxSize) {
+ if (unpack->RowLength == 0)
+ unpack->RowLength = *width;
+ *width = maxSize;
+ }
+ if (*height > maxSize) {
+ *height = maxSize;
+ }
}
* Called via ctx->Driver.DrawPixels()
*/
static void
-st_DrawPixels(GLcontext *ctx, GLint x, GLint y, GLsizei width, GLsizei height,
+st_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)
{
void *driver_vp, *driver_fp;
struct st_context *st = st_context(ctx);
const GLfloat *color;
+ struct pipe_context *pipe = st->pipe;
+ GLboolean write_stencil = GL_FALSE, write_depth = GL_FALSE;
+ struct pipe_sampler_view *sv[2];
+ int num_sampler_view = 1;
+ struct st_fp_variant *fpv;
+ struct gl_pixelstore_attrib clippedUnpack;
- if (format == GL_STENCIL_INDEX ||
- format == GL_DEPTH_STENCIL) {
+ /* Mesa state should be up to date by now */
+ assert(ctx->NewState == 0x0);
+
+ st_validate_state(st);
+
+ /* Limit the size of the glDrawPixels to the max texture size.
+ * Strictly speaking, that's not correct but since we don't handle
+ * larger images yet, this is better than crashing.
+ */
+ clippedUnpack = *unpack;
+ unpack = &clippedUnpack;
+ clamp_size(st->pipe, &width, &height, &clippedUnpack);
+
+ if (format == GL_DEPTH_STENCIL)
+ write_stencil = write_depth = GL_TRUE;
+ else if (format == GL_STENCIL_INDEX)
+ write_stencil = GL_TRUE;
+ else if (format == GL_DEPTH_COMPONENT)
+ write_depth = GL_TRUE;
+
+ if (write_stencil &&
+ !pipe->screen->get_param(pipe->screen, PIPE_CAP_SHADER_STENCIL_EXPORT)) {
+ /* software fallback */
draw_stencil_pixels(ctx, x, y, width, height, format, type,
unpack, pixels);
return;
}
- /* Mesa state should be up to date by now */
- assert(ctx->NewState == 0x0);
+ /*
+ * Get vertex/fragment shaders
+ */
+ if (write_depth || write_stencil) {
+ fpv = get_depth_stencil_fp_variant(st, write_depth, write_stencil);
- st_validate_state(st);
+ driver_fp = fpv->driver_shader;
- if (format == GL_DEPTH_COMPONENT) {
- driver_fp = make_fragment_shader_z(st);
driver_vp = make_passthrough_vertex_shader(st, GL_TRUE);
+
color = ctx->Current.RasterColor;
}
else {
- driver_fp = combined_drawpix_fragment_program(ctx);
+ fpv = get_color_fp_variant(st);
+
+ driver_fp = fpv->driver_shader;
+
driver_vp = make_passthrough_vertex_shader(st, GL_FALSE);
+
color = NULL;
+ if (st->pixel_xfer.pixelmap_enabled) {
+ sv[1] = st->pixel_xfer.pixelmap_sampler_view;
+ num_sampler_view++;
+ }
}
+ /* update fragment program constants */
+ st_upload_constants(st, fpv->parameters, PIPE_SHADER_FRAGMENT);
+
/* draw with textured quad */
{
struct pipe_resource *pt
= make_texture(st, width, height, format, type, unpack, pixels);
if (pt) {
- struct pipe_sampler_view *sv = st_create_texture_sampler_view(st->pipe, pt);
+ sv[0] = st_create_texture_sampler_view(st->pipe, pt);
+
+ if (sv[0]) {
+ /* Create a second sampler view to read stencil.
+ * The stencil is written using the shader stencil export
+ * functionality. */
+ if (write_stencil) {
+ enum pipe_format stencil_format =
+ util_format_stencil_only(pt->format);
+
+ sv[1] = st_create_texture_sampler_view_format(st->pipe, pt,
+ stencil_format);
+ num_sampler_view++;
+ }
- if (sv) {
draw_textured_quad(ctx, x, y, ctx->Current.RasterPos[2],
- width, height, ctx->Pixel.ZoomX, ctx->Pixel.ZoomY,
+ width, height,
+ ctx->Pixel.ZoomX, ctx->Pixel.ZoomY,
sv,
- driver_vp,
+ num_sampler_view,
+ driver_vp,
driver_fp,
- color, GL_FALSE);
- pipe_sampler_view_reference(&sv, NULL);
+ color, GL_FALSE, write_depth, write_stencil);
+ pipe_sampler_view_reference(&sv[0], NULL);
+ if (num_sampler_view > 1)
+ pipe_sampler_view_reference(&sv[1], NULL);
}
pipe_resource_reference(&pt, NULL);
}
+/**
+ * Software fallback for glCopyPixels(GL_STENCIL).
+ */
static void
-copy_stencil_pixels(GLcontext *ctx, GLint srcx, GLint srcy,
+copy_stencil_pixels(struct gl_context *ctx, GLint srcx, GLint srcy,
GLsizei width, GLsizei height,
GLint dstx, GLint dsty)
{
- struct st_renderbuffer *rbDraw = st_renderbuffer(ctx->DrawBuffer->_StencilBuffer);
- struct pipe_context *pipe = ctx->st->pipe;
+ struct st_renderbuffer *rbDraw;
+ struct pipe_context *pipe = st_context(ctx)->pipe;
enum pipe_transfer_usage usage;
struct pipe_transfer *ptDraw;
ubyte *drawMap;
return;
}
+ /* Get the dest renderbuffer */
+ rbDraw = st_renderbuffer(ctx->DrawBuffer->
+ Attachment[BUFFER_STENCIL].Renderbuffer);
+
/* this will do stencil pixel transfer ops */
- st_read_stencil_pixels(ctx, srcx, srcy, width, height,
- GL_STENCIL_INDEX, GL_UNSIGNED_BYTE,
- &ctx->DefaultPacking, buffer);
+ _mesa_readpixels(ctx, srcx, srcy, width, height,
+ GL_STENCIL_INDEX, GL_UNSIGNED_BYTE,
+ &ctx->DefaultPacking, buffer);
- if(util_format_get_component_bits(rbDraw->format, UTIL_FORMAT_COLORSPACE_ZS, 0) != 0)
+ if (0) {
+ /* debug code: dump stencil values */
+ GLint row, col;
+ for (row = 0; row < height; row++) {
+ printf("%3d: ", row);
+ for (col = 0; col < width; col++) {
+ printf("%02x ", buffer[col + row * width]);
+ }
+ printf("\n");
+ }
+ }
+
+ if (_mesa_is_format_packed_depth_stencil(rbDraw->Base.Format))
usage = PIPE_TRANSFER_READ_WRITE;
else
usage = PIPE_TRANSFER_WRITE;
-
+
if (st_fb_orientation(ctx->DrawBuffer) == Y_0_TOP) {
dsty = rbDraw->Base.Height - dsty - height;
}
- ptDraw = st_cond_flush_get_tex_transfer(st_context(ctx),
- rbDraw->texture, 0, 0, 0,
- usage, dstx, dsty,
- width, height);
-
- assert(util_format_get_blockwidth(ptDraw->resource->format) == 1);
- assert(util_format_get_blockheight(ptDraw->resource->format) == 1);
+ assert(util_format_get_blockwidth(rbDraw->texture->format) == 1);
+ assert(util_format_get_blockheight(rbDraw->texture->format) == 1);
/* map the stencil buffer */
- drawMap = pipe_transfer_map(pipe, ptDraw);
+ drawMap = pipe_transfer_map(pipe,
+ rbDraw->texture,
+ rbDraw->surface->u.tex.level,
+ rbDraw->surface->u.tex.first_layer,
+ usage, dstx, dsty,
+ width, height, &ptDraw);
/* draw */
/* XXX PixelZoom not handled yet */
dst = drawMap + y * ptDraw->stride;
src = buffer + i * width;
- switch (ptDraw->resource->format) {
- case PIPE_FORMAT_Z24_UNORM_S8_USCALED:
- {
- uint *dst4 = (uint *) dst;
- int j;
- assert(usage == PIPE_TRANSFER_READ_WRITE);
- for (j = 0; j < width; j++) {
- *dst4 = (*dst4 & 0xffffff) | (src[j] << 24);
- dst4++;
- }
- }
- break;
- case PIPE_FORMAT_S8_USCALED_Z24_UNORM:
- {
- uint *dst4 = (uint *) dst;
- int j;
- assert(usage == PIPE_TRANSFER_READ_WRITE);
- for (j = 0; j < width; j++) {
- *dst4 = (*dst4 & 0xffffff00) | (src[j] & 0xff);
- dst4++;
- }
- }
- break;
- case PIPE_FORMAT_S8_USCALED:
- assert(usage == PIPE_TRANSFER_WRITE);
- memcpy(dst, src, width);
- break;
- default:
- assert(0);
- }
+ _mesa_pack_ubyte_stencil_row(rbDraw->Base.Format, width, src, dst);
}
free(buffer);
/* unmap the stencil buffer */
pipe_transfer_unmap(pipe, ptDraw);
- pipe->transfer_destroy(pipe, ptDraw);
+}
+
+
+/**
+ * Return renderbuffer to use for reading color pixels for glCopyPixels
+ */
+static struct st_renderbuffer *
+st_get_color_read_renderbuffer(struct gl_context *ctx)
+{
+ struct gl_framebuffer *fb = ctx->ReadBuffer;
+ struct st_renderbuffer *strb =
+ st_renderbuffer(fb->_ColorReadBuffer);
+
+ return strb;
+}
+
+
+/**
+ * \return TRUE if two regions overlap, FALSE otherwise
+ */
+static boolean
+regions_overlap(int srcX0, int srcY0,
+ int srcX1, int srcY1,
+ int dstX0, int dstY0,
+ int dstX1, int dstY1)
+{
+ if (MAX2(srcX0, srcX1) < MIN2(dstX0, dstX1))
+ return FALSE; /* src completely left of dst */
+
+ if (MAX2(dstX0, dstX1) < MIN2(srcX0, srcX1))
+ return FALSE; /* dst completely left of src */
+
+ if (MAX2(srcY0, srcY1) < MIN2(dstY0, dstY1))
+ return FALSE; /* src completely above dst */
+
+ if (MAX2(dstY0, dstY1) < MIN2(srcY0, srcY1))
+ return FALSE; /* dst completely above src */
+
+ return TRUE; /* some overlap */
+}
+
+
+/**
+ * Try to do a glCopyPixels for simple cases with a blit by calling
+ * pipe->blit().
+ *
+ * We can do this when we're copying color pixels (depth/stencil
+ * eventually) with no pixel zoom, no pixel transfer ops, no
+ * per-fragment ops, and the src/dest regions don't overlap.
+ */
+static GLboolean
+blit_copy_pixels(struct gl_context *ctx, GLint srcx, GLint srcy,
+ GLsizei width, GLsizei height,
+ GLint dstx, GLint dsty, GLenum type)
+{
+ struct st_context *st = st_context(ctx);
+ struct pipe_context *pipe = st->pipe;
+ struct pipe_screen *screen = pipe->screen;
+ struct gl_pixelstore_attrib pack, unpack;
+ GLint readX, readY, readW, readH, drawX, drawY, drawW, drawH;
+
+ if (type == GL_COLOR &&
+ ctx->Pixel.ZoomX == 1.0 &&
+ ctx->Pixel.ZoomY == 1.0 &&
+ ctx->_ImageTransferState == 0x0 &&
+ !ctx->Color.BlendEnabled &&
+ !ctx->Color.AlphaEnabled &&
+ !ctx->Depth.Test &&
+ !ctx->Fog.Enabled &&
+ !ctx->Stencil.Enabled &&
+ !ctx->FragmentProgram.Enabled &&
+ !ctx->VertexProgram.Enabled &&
+ !ctx->_Shader->CurrentProgram[MESA_SHADER_FRAGMENT] &&
+ ctx->DrawBuffer->_NumColorDrawBuffers == 1 &&
+ !ctx->Query.CondRenderQuery &&
+ !ctx->Query.CurrentOcclusionObject) {
+ struct st_renderbuffer *rbRead, *rbDraw;
+
+ /*
+ * Clip the read region against the src buffer bounds.
+ * We'll still allocate a temporary buffer/texture for the original
+ * src region size but we'll only read the region which is on-screen.
+ * This may mean that we draw garbage pixels into the dest region, but
+ * that's expected.
+ */
+ readX = srcx;
+ readY = srcy;
+ readW = width;
+ readH = height;
+ pack = ctx->DefaultPacking;
+ if (!_mesa_clip_readpixels(ctx, &readX, &readY, &readW, &readH, &pack))
+ return GL_TRUE; /* all done */
+
+ /* clip against dest buffer bounds and scissor box */
+ drawX = dstx + pack.SkipPixels;
+ drawY = dsty + pack.SkipRows;
+ unpack = pack;
+ if (!_mesa_clip_drawpixels(ctx, &drawX, &drawY, &readW, &readH, &unpack))
+ return GL_TRUE; /* all done */
+
+ readX = readX - pack.SkipPixels + unpack.SkipPixels;
+ readY = readY - pack.SkipRows + unpack.SkipRows;
+
+ drawW = readW;
+ drawH = readH;
+
+ rbRead = st_get_color_read_renderbuffer(ctx);
+ rbDraw = st_renderbuffer(ctx->DrawBuffer->_ColorDrawBuffers[0]);
+
+ /* Flip src/dst position depending on the orientation of buffers. */
+ if (st_fb_orientation(ctx->ReadBuffer) == Y_0_TOP) {
+ readY = rbRead->Base.Height - readY;
+ readH = -readH;
+ }
+
+ if (st_fb_orientation(ctx->DrawBuffer) == Y_0_TOP) {
+ /* We can't flip the destination for pipe->blit, so we only adjust
+ * its position and flip the source.
+ */
+ drawY = rbDraw->Base.Height - drawY - drawH;
+ readY += readH;
+ readH = -readH;
+ }
+
+ if (rbRead != rbDraw ||
+ !regions_overlap(readX, readY, readX + readW, readY + readH,
+ drawX, drawY, drawX + drawW, drawY + drawH)) {
+ struct pipe_blit_info blit;
+
+ memset(&blit, 0, sizeof(blit));
+ blit.src.resource = rbRead->texture;
+ blit.src.level = rbRead->surface->u.tex.level;
+ blit.src.format = rbRead->texture->format;
+ blit.src.box.x = readX;
+ blit.src.box.y = readY;
+ blit.src.box.z = rbRead->surface->u.tex.first_layer;
+ blit.src.box.width = readW;
+ blit.src.box.height = readH;
+ blit.src.box.depth = 1;
+ blit.dst.resource = rbDraw->texture;
+ blit.dst.level = rbDraw->surface->u.tex.level;
+ blit.dst.format = rbDraw->texture->format;
+ blit.dst.box.x = drawX;
+ blit.dst.box.y = drawY;
+ blit.dst.box.z = rbDraw->surface->u.tex.first_layer;
+ blit.dst.box.width = drawW;
+ blit.dst.box.height = drawH;
+ blit.dst.box.depth = 1;
+ blit.mask = PIPE_MASK_RGBA;
+ blit.filter = PIPE_TEX_FILTER_NEAREST;
+
+ if (screen->is_format_supported(screen, blit.src.format,
+ blit.src.resource->target,
+ blit.src.resource->nr_samples,
+ PIPE_BIND_SAMPLER_VIEW) &&
+ screen->is_format_supported(screen, blit.dst.format,
+ blit.dst.resource->target,
+ blit.dst.resource->nr_samples,
+ PIPE_BIND_RENDER_TARGET)) {
+ pipe->blit(pipe, &blit);
+ return GL_TRUE;
+ }
+ }
+ }
+
+ return GL_FALSE;
}
static void
-st_CopyPixels(GLcontext *ctx, GLint srcx, GLint srcy,
+st_CopyPixels(struct gl_context *ctx, GLint srcx, GLint srcy,
GLsizei width, GLsizei height,
GLint dstx, GLint dsty, GLenum type)
{
struct st_renderbuffer *rbRead;
void *driver_vp, *driver_fp;
struct pipe_resource *pt;
- struct pipe_sampler_view *sv;
+ struct pipe_sampler_view *sv[2];
+ int num_sampler_view = 1;
GLfloat *color;
- enum pipe_format srcFormat, texFormat;
+ enum pipe_format srcFormat;
+ unsigned srcBind;
GLboolean invertTex = GL_FALSE;
GLint readX, readY, readW, readH;
struct gl_pixelstore_attrib pack = ctx->DefaultPacking;
-
- pipe->flush(pipe, PIPE_FLUSH_RENDER_CACHE, NULL);
+ struct st_fp_variant *fpv;
st_validate_state(st);
+ if (type == GL_DEPTH_STENCIL) {
+ /* XXX make this more efficient */
+ st_CopyPixels(ctx, srcx, srcy, width, height, dstx, dsty, GL_STENCIL);
+ st_CopyPixels(ctx, srcx, srcy, width, height, dstx, dsty, GL_DEPTH);
+ return;
+ }
+
if (type == GL_STENCIL) {
/* can't use texturing to do stencil */
copy_stencil_pixels(ctx, srcx, srcy, width, height, dstx, dsty);
return;
}
+ if (blit_copy_pixels(ctx, srcx, srcy, width, height, dstx, dsty, type))
+ return;
+
+ /*
+ * The subsequent code implements glCopyPixels by copying the source
+ * pixels into a temporary texture that's then applied to a textured quad.
+ * When we draw the textured quad, all the usual per-fragment operations
+ * are handled.
+ */
+
+
+ /*
+ * Get vertex/fragment shaders
+ */
if (type == GL_COLOR) {
rbRead = st_get_color_read_renderbuffer(ctx);
color = NULL;
- driver_fp = combined_drawpix_fragment_program(ctx);
+
+ fpv = get_color_fp_variant(st);
+ driver_fp = fpv->driver_shader;
+
driver_vp = make_passthrough_vertex_shader(st, GL_FALSE);
+
+ if (st->pixel_xfer.pixelmap_enabled) {
+ sv[1] = st->pixel_xfer.pixelmap_sampler_view;
+ num_sampler_view++;
+ }
}
else {
assert(type == GL_DEPTH);
- rbRead = st_renderbuffer(ctx->ReadBuffer->_DepthBuffer);
+ rbRead = st_renderbuffer(ctx->ReadBuffer->
+ Attachment[BUFFER_DEPTH].Renderbuffer);
color = ctx->Current.Attrib[VERT_ATTRIB_COLOR0];
- driver_fp = make_fragment_shader_z(st);
+
+ fpv = get_depth_stencil_fp_variant(st, GL_TRUE, GL_FALSE);
+ driver_fp = fpv->driver_shader;
+
driver_vp = make_passthrough_vertex_shader(st, GL_TRUE);
}
+ /* update fragment program constants */
+ st_upload_constants(st, fpv->parameters, PIPE_SHADER_FRAGMENT);
+
+ /* Choose the format for the temporary texture. */
srcFormat = rbRead->texture->format;
+ srcBind = PIPE_BIND_SAMPLER_VIEW |
+ (type == GL_COLOR ? PIPE_BIND_RENDER_TARGET : PIPE_BIND_DEPTH_STENCIL);
- if (screen->is_format_supported(screen, srcFormat, PIPE_TEXTURE_2D,
- PIPE_BIND_SAMPLER_VIEW, 0)) {
- texFormat = srcFormat;
- }
- else {
- /* srcFormat can't be used as a texture format */
+ if (!screen->is_format_supported(screen, srcFormat, st->internal_target, 0,
+ srcBind)) {
+ /* srcFormat is non-renderable. Find a compatible renderable format. */
if (type == GL_DEPTH) {
- texFormat = st_choose_format(screen, GL_DEPTH_COMPONENT,
- PIPE_TEXTURE_2D,
- PIPE_BIND_DEPTH_STENCIL);
- assert(texFormat != PIPE_FORMAT_NONE);
+ srcFormat = st_choose_format(st, GL_DEPTH_COMPONENT, GL_NONE,
+ GL_NONE, st->internal_target, 0,
+ srcBind, FALSE);
}
else {
- /* default color format */
- texFormat = st_choose_format(screen, GL_RGBA, PIPE_TEXTURE_2D,
- PIPE_BIND_SAMPLER_VIEW);
- assert(texFormat != PIPE_FORMAT_NONE);
+ assert(type == GL_COLOR);
+
+ if (util_format_is_float(srcFormat)) {
+ srcFormat = st_choose_format(st, GL_RGBA32F, GL_NONE,
+ GL_NONE, st->internal_target, 0,
+ srcBind, FALSE);
+ }
+ else if (util_format_is_pure_sint(srcFormat)) {
+ srcFormat = st_choose_format(st, GL_RGBA32I, GL_NONE,
+ GL_NONE, st->internal_target, 0,
+ srcBind, FALSE);
+ }
+ else if (util_format_is_pure_uint(srcFormat)) {
+ srcFormat = st_choose_format(st, GL_RGBA32UI, GL_NONE,
+ GL_NONE, st->internal_target, 0,
+ srcBind, FALSE);
+ }
+ else if (util_format_is_snorm(srcFormat)) {
+ srcFormat = st_choose_format(st, GL_RGBA16_SNORM, GL_NONE,
+ GL_NONE, st->internal_target, 0,
+ srcBind, FALSE);
+ }
+ else {
+ srcFormat = st_choose_format(st, GL_RGBA, GL_NONE,
+ GL_NONE, st->internal_target, 0,
+ srcBind, FALSE);
+ }
+ }
+
+ if (srcFormat == PIPE_FORMAT_NONE) {
+ assert(0 && "cannot choose a format for src of CopyPixels");
+ return;
}
}
readY = srcy;
readW = width;
readH = height;
- _mesa_clip_readpixels(ctx, &readX, &readY, &readW, &readH, &pack);
+ if (!_mesa_clip_readpixels(ctx, &readX, &readY, &readW, &readH, &pack)) {
+ /* The source region is completely out of bounds. Do nothing.
+ * The GL spec says "Results of copies from outside the window,
+ * or from regions of the window that are not exposed, are
+ * hardware dependent and undefined."
+ */
+ return;
+ }
+
readW = MAX2(0, readW);
readH = MAX2(0, readH);
- /* alloc temporary texture */
- pt = alloc_texture(st, width, height, texFormat);
+ /* Allocate the temporary texture. */
+ pt = alloc_texture(st, width, height, srcFormat, srcBind);
if (!pt)
return;
- sv = st_create_texture_sampler_view(st->pipe, pt);
- if (!sv) {
+ sv[0] = st_create_texture_sampler_view(st->pipe, pt);
+ if (!sv[0]) {
pipe_resource_reference(&pt, NULL);
return;
}
- /* Make temporary texture which is a copy of the src region.
- */
- if (srcFormat == texFormat) {
- /* copy source framebuffer surface into mipmap/texture */
- struct pipe_surface *psRead = screen->get_tex_surface(screen,
- rbRead->texture, 0, 0, 0,
- PIPE_BIND_BLIT_SOURCE);
- struct pipe_surface *psTex = screen->get_tex_surface(screen, pt, 0, 0, 0,
- PIPE_BIND_RENDER_TARGET |
- PIPE_BIND_BLIT_DESTINATION);
- pipe->surface_copy(pipe,
- psTex, /* dest surf */
- pack.SkipPixels, pack.SkipRows, /* dest pos */
- psRead, /* src surf */
- readX, readY, readW, readH); /* src region */
-
- if (0) {
- /* debug */
- debug_dump_surface(pipe, "copypixsrcsurf", psRead);
- debug_dump_surface(pipe, "copypixtemptex", psTex);
- }
-
- pipe_surface_reference(&psRead, NULL);
- pipe_surface_reference(&psTex, NULL);
- }
- else {
- /* CPU-based fallback/conversion */
- struct pipe_transfer *ptRead =
- st_cond_flush_get_tex_transfer(st, rbRead->texture, 0, 0, 0,
- PIPE_TRANSFER_READ,
- readX, readY, readW, readH);
- struct pipe_transfer *ptTex;
- enum pipe_transfer_usage transfer_usage;
-
- if (ST_DEBUG & DEBUG_FALLBACK)
- debug_printf("%s: fallback processing\n", __FUNCTION__);
-
- if (type == GL_DEPTH && util_format_is_depth_and_stencil(pt->format))
- transfer_usage = PIPE_TRANSFER_READ_WRITE;
- else
- transfer_usage = PIPE_TRANSFER_WRITE;
-
- ptTex = st_cond_flush_get_tex_transfer(st, pt, 0, 0, 0, transfer_usage,
- 0, 0, width, height);
-
- /* copy image from ptRead surface to ptTex surface */
- if (type == GL_COLOR) {
- /* alternate path using get/put_tile() */
- GLfloat *buf = (GLfloat *) malloc(width * height * 4 * sizeof(GLfloat));
- pipe_get_tile_rgba(pipe, ptRead, readX, readY, readW, readH, buf);
- pipe_put_tile_rgba(pipe, ptTex, pack.SkipPixels, pack.SkipRows,
- readW, readH, buf);
- free(buf);
- }
- else {
- /* GL_DEPTH */
- GLuint *buf = (GLuint *) malloc(width * height * sizeof(GLuint));
- pipe_get_tile_z(pipe, ptRead, readX, readY, readW, readH, buf);
- pipe_put_tile_z(pipe, ptTex, pack.SkipPixels, pack.SkipRows,
- readW, readH, buf);
- free(buf);
- }
-
- pipe->transfer_destroy(pipe, ptRead);
- pipe->transfer_destroy(pipe, ptTex);
+ /* Copy the src region to the temporary texture. */
+ {
+ struct pipe_blit_info blit;
+
+ memset(&blit, 0, sizeof(blit));
+ blit.src.resource = rbRead->texture;
+ blit.src.level = rbRead->surface->u.tex.level;
+ blit.src.format = rbRead->texture->format;
+ blit.src.box.x = readX;
+ blit.src.box.y = readY;
+ blit.src.box.z = rbRead->surface->u.tex.first_layer;
+ blit.src.box.width = readW;
+ blit.src.box.height = readH;
+ blit.src.box.depth = 1;
+ blit.dst.resource = pt;
+ blit.dst.level = 0;
+ blit.dst.format = pt->format;
+ blit.dst.box.x = pack.SkipPixels;
+ blit.dst.box.y = pack.SkipRows;
+ blit.dst.box.z = 0;
+ blit.dst.box.width = readW;
+ blit.dst.box.height = readH;
+ blit.dst.box.depth = 1;
+ blit.mask = util_format_get_mask(pt->format) & ~PIPE_MASK_S;
+ blit.filter = PIPE_TEX_FILTER_NEAREST;
+
+ pipe->blit(pipe, &blit);
}
/* OK, the texture 'pt' contains the src image/pixels. Now draw a
*/
draw_textured_quad(ctx, dstx, dsty, ctx->Current.RasterPos[2],
width, height, ctx->Pixel.ZoomX, ctx->Pixel.ZoomY,
- sv,
+ sv,
+ num_sampler_view,
driver_vp,
driver_fp,
- color, invertTex);
+ color, invertTex, GL_FALSE, GL_FALSE);
pipe_resource_reference(&pt, NULL);
- pipe_sampler_view_reference(&sv, NULL);
+ pipe_sampler_view_reference(&sv[0], NULL);
}
void
st_destroy_drawpix(struct st_context *st)
{
- st_reference_fragprog(st, &st->drawpix.z_shader, NULL);
+ GLuint i;
+
+ for (i = 0; i < Elements(st->drawpix.shaders); i++) {
+ if (st->drawpix.shaders[i])
+ _mesa_reference_fragprog(st->ctx, &st->drawpix.shaders[i], NULL);
+ }
+
st_reference_fragprog(st, &st->pixel_xfer.combined_prog, NULL);
if (st->drawpix.vert_shaders[0])
- free(st->drawpix.vert_shaders[0]);
+ cso_delete_vertex_shader(st->cso_context, st->drawpix.vert_shaders[0]);
if (st->drawpix.vert_shaders[1])
- free(st->drawpix.vert_shaders[1]);
+ cso_delete_vertex_shader(st->cso_context, st->drawpix.vert_shaders[1]);
}