/*
* Mesa 3-D graphics library
- * Version: 6.5.3
*
* Copyright (C) 1999-2007 Brian Paul All Rights Reserved.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
* OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
- * BRIAN PAUL 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.
+ * THE AUTHORS OR COPYRIGHT HOLDERS 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/glheader.h"
#include "main/context.h"
#include "main/hash.h"
-#include "main/mfeatures.h"
+#include "main/macros.h"
#include "program.h"
#include "prog_cache.h"
#include "prog_parameter.h"
#include "prog_instruction.h"
+#include "util/ralloc.h"
/**
void
_mesa_init_program(struct gl_context *ctx)
{
- GLuint i;
-
/*
* If this assertion fails, we need to increase the field
* size for register indexes (see INST_INDEX_BITS).
*/
- ASSERT(ctx->Const.VertexProgram.MaxUniformComponents / 4
+ assert(ctx->Const.Program[MESA_SHADER_VERTEX].MaxUniformComponents / 4
<= (1 << INST_INDEX_BITS));
- ASSERT(ctx->Const.FragmentProgram.MaxUniformComponents / 4
+ assert(ctx->Const.Program[MESA_SHADER_FRAGMENT].MaxUniformComponents / 4
<= (1 << INST_INDEX_BITS));
- ASSERT(ctx->Const.VertexProgram.MaxTemps <= (1 << INST_INDEX_BITS));
- ASSERT(ctx->Const.VertexProgram.MaxLocalParams <= (1 << INST_INDEX_BITS));
- ASSERT(ctx->Const.FragmentProgram.MaxTemps <= (1 << INST_INDEX_BITS));
- ASSERT(ctx->Const.FragmentProgram.MaxLocalParams <= (1 << INST_INDEX_BITS));
+ assert(ctx->Const.Program[MESA_SHADER_VERTEX].MaxTemps <= (1 << INST_INDEX_BITS));
+ assert(ctx->Const.Program[MESA_SHADER_VERTEX].MaxLocalParams <= (1 << INST_INDEX_BITS));
+ assert(ctx->Const.Program[MESA_SHADER_FRAGMENT].MaxTemps <= (1 << INST_INDEX_BITS));
+ assert(ctx->Const.Program[MESA_SHADER_FRAGMENT].MaxLocalParams <= (1 << INST_INDEX_BITS));
- ASSERT(ctx->Const.VertexProgram.MaxUniformComponents <= 4 * MAX_UNIFORMS);
- ASSERT(ctx->Const.FragmentProgram.MaxUniformComponents <= 4 * MAX_UNIFORMS);
+ assert(ctx->Const.Program[MESA_SHADER_VERTEX].MaxUniformComponents <= 4 * MAX_UNIFORMS);
+ assert(ctx->Const.Program[MESA_SHADER_FRAGMENT].MaxUniformComponents <= 4 * MAX_UNIFORMS);
- ASSERT(ctx->Const.VertexProgram.MaxAddressOffset <= (1 << INST_INDEX_BITS));
- ASSERT(ctx->Const.FragmentProgram.MaxAddressOffset <= (1 << INST_INDEX_BITS));
+ assert(ctx->Const.Program[MESA_SHADER_VERTEX].MaxAddressOffset <= (1 << INST_INDEX_BITS));
+ assert(ctx->Const.Program[MESA_SHADER_FRAGMENT].MaxAddressOffset <= (1 << INST_INDEX_BITS));
/* If this fails, increase prog_instruction::TexSrcUnit size */
- ASSERT(MAX_TEXTURE_UNITS <= (1 << 5));
+ STATIC_ASSERT(MAX_TEXTURE_UNITS <= (1 << 5));
/* If this fails, increase prog_instruction::TexSrcTarget size */
- ASSERT(NUM_TEXTURE_TARGETS <= (1 << 4));
+ STATIC_ASSERT(NUM_TEXTURE_TARGETS <= (1 << 4));
ctx->Program.ErrorPos = -1;
- ctx->Program.ErrorString = _mesa_strdup("");
+ ctx->Program.ErrorString = strdup("");
-#if FEATURE_NV_vertex_program || FEATURE_ARB_vertex_program
ctx->VertexProgram.Enabled = GL_FALSE;
-#if FEATURE_es2_glsl
ctx->VertexProgram.PointSizeEnabled =
(ctx->API == API_OPENGLES2) ? GL_TRUE : GL_FALSE;
-#else
- ctx->VertexProgram.PointSizeEnabled = GL_FALSE;
-#endif
ctx->VertexProgram.TwoSideEnabled = GL_FALSE;
_mesa_reference_vertprog(ctx, &ctx->VertexProgram.Current,
ctx->Shared->DefaultVertexProgram);
assert(ctx->VertexProgram.Current);
- for (i = 0; i < MAX_NV_VERTEX_PROGRAM_PARAMS / 4; i++) {
- ctx->VertexProgram.TrackMatrix[i] = GL_NONE;
- ctx->VertexProgram.TrackMatrixTransform[i] = GL_IDENTITY_NV;
- }
ctx->VertexProgram.Cache = _mesa_new_program_cache();
-#endif
-#if FEATURE_NV_fragment_program || FEATURE_ARB_fragment_program
ctx->FragmentProgram.Enabled = GL_FALSE;
_mesa_reference_fragprog(ctx, &ctx->FragmentProgram.Current,
ctx->Shared->DefaultFragmentProgram);
assert(ctx->FragmentProgram.Current);
ctx->FragmentProgram.Cache = _mesa_new_program_cache();
-#endif
-#if FEATURE_ARB_geometry_shader4
ctx->GeometryProgram.Enabled = GL_FALSE;
/* right now by default we don't have a geometry program */
_mesa_reference_geomprog(ctx, &ctx->GeometryProgram.Current,
NULL);
- ctx->GeometryProgram.Cache = _mesa_new_program_cache();
-#endif
+
+ _mesa_reference_compprog(ctx, &ctx->ComputeProgram.Current, NULL);
/* XXX probably move this stuff */
-#if FEATURE_ATI_fragment_shader
ctx->ATIFragmentShader.Enabled = GL_FALSE;
ctx->ATIFragmentShader.Current = ctx->Shared->DefaultFragmentShader;
assert(ctx->ATIFragmentShader.Current);
ctx->ATIFragmentShader.Current->RefCount++;
-#endif
}
void
_mesa_free_program_data(struct gl_context *ctx)
{
-#if FEATURE_NV_vertex_program || FEATURE_ARB_vertex_program
_mesa_reference_vertprog(ctx, &ctx->VertexProgram.Current, NULL);
_mesa_delete_program_cache(ctx, ctx->VertexProgram.Cache);
-#endif
-#if FEATURE_NV_fragment_program || FEATURE_ARB_fragment_program
_mesa_reference_fragprog(ctx, &ctx->FragmentProgram.Current, NULL);
_mesa_delete_shader_cache(ctx, ctx->FragmentProgram.Cache);
-#endif
-#if FEATURE_ARB_geometry_shader4
_mesa_reference_geomprog(ctx, &ctx->GeometryProgram.Current, NULL);
- _mesa_delete_program_cache(ctx, ctx->GeometryProgram.Cache);
-#endif
+ _mesa_reference_compprog(ctx, &ctx->ComputeProgram.Current, NULL);
+
/* XXX probably move this stuff */
-#if FEATURE_ATI_fragment_shader
if (ctx->ATIFragmentShader.Current) {
ctx->ATIFragmentShader.Current->RefCount--;
if (ctx->ATIFragmentShader.Current->RefCount <= 0) {
free(ctx->ATIFragmentShader.Current);
}
}
-#endif
+
free((void *) ctx->Program.ErrorString);
}
void
_mesa_update_default_objects_program(struct gl_context *ctx)
{
-#if FEATURE_NV_vertex_program || FEATURE_ARB_vertex_program
_mesa_reference_vertprog(ctx, &ctx->VertexProgram.Current,
ctx->Shared->DefaultVertexProgram);
assert(ctx->VertexProgram.Current);
-#endif
-#if FEATURE_NV_fragment_program || FEATURE_ARB_fragment_program
_mesa_reference_fragprog(ctx, &ctx->FragmentProgram.Current,
ctx->Shared->DefaultFragmentProgram);
assert(ctx->FragmentProgram.Current);
-#endif
-#if FEATURE_ARB_geometry_shader4
_mesa_reference_geomprog(ctx, &ctx->GeometryProgram.Current,
ctx->Shared->DefaultGeometryProgram);
-#endif
/* XXX probably move this stuff */
-#if FEATURE_ATI_fragment_shader
if (ctx->ATIFragmentShader.Current) {
ctx->ATIFragmentShader.Current->RefCount--;
if (ctx->ATIFragmentShader.Current->RefCount <= 0) {
ctx->ATIFragmentShader.Current = (struct ati_fragment_shader *) ctx->Shared->DefaultFragmentShader;
assert(ctx->ATIFragmentShader.Current);
ctx->ATIFragmentShader.Current->RefCount++;
-#endif
}
free((void *) ctx->Program.ErrorString);
if (!string)
string = "";
- ctx->Program.ErrorString = _mesa_strdup(string);
+ ctx->Program.ErrorString = strdup(string);
}
/**
- * Initialize a new vertex/fragment program object.
+ * Initialize a new gl_program object.
*/
-static struct gl_program *
-_mesa_init_program_struct( struct gl_context *ctx, struct gl_program *prog,
- GLenum target, GLuint id)
+static void
+init_program_struct(struct gl_program *prog, GLenum target, GLuint id)
{
- (void) ctx;
- if (prog) {
- GLuint i;
- memset(prog, 0, sizeof(*prog));
- prog->Id = id;
- prog->Target = target;
- prog->Resident = GL_TRUE;
- prog->RefCount = 1;
- prog->Format = GL_PROGRAM_FORMAT_ASCII_ARB;
-
- /* default mapping from samplers to texture units */
- for (i = 0; i < MAX_SAMPLERS; i++)
- prog->SamplerUnits[i] = i;
- }
+ GLuint i;
- return prog;
+ assert(prog);
+
+ memset(prog, 0, sizeof(*prog));
+ prog->Id = id;
+ prog->Target = target;
+ prog->RefCount = 1;
+ prog->Format = GL_PROGRAM_FORMAT_ASCII_ARB;
+
+ /* default mapping from samplers to texture units */
+ for (i = 0; i < MAX_SAMPLERS; i++)
+ prog->SamplerUnits[i] = i;
}
* Initialize a new fragment program object.
*/
struct gl_program *
-_mesa_init_fragment_program( struct gl_context *ctx, struct gl_fragment_program *prog,
- GLenum target, GLuint id)
+_mesa_init_fragment_program(struct gl_context *ctx,
+ struct gl_fragment_program *prog,
+ GLenum target, GLuint id)
{
- if (prog)
- return _mesa_init_program_struct( ctx, &prog->Base, target, id );
- else
- return NULL;
+ if (prog) {
+ init_program_struct(&prog->Base, target, id);
+ return &prog->Base;
+ }
+ return NULL;
}
* Initialize a new vertex program object.
*/
struct gl_program *
-_mesa_init_vertex_program( struct gl_context *ctx, struct gl_vertex_program *prog,
+_mesa_init_vertex_program(struct gl_context *ctx,
+ struct gl_vertex_program *prog,
+ GLenum target, GLuint id)
+{
+ if (prog) {
+ init_program_struct(&prog->Base, target, id);
+ return &prog->Base;
+ }
+ return NULL;
+}
+
+
+/**
+ * Initialize a new compute program object.
+ */
+struct gl_program *
+_mesa_init_compute_program(struct gl_context *ctx,
+ struct gl_compute_program *prog,
GLenum target, GLuint id)
{
- if (prog)
- return _mesa_init_program_struct( ctx, &prog->Base, target, id );
- else
- return NULL;
+ if (prog) {
+ init_program_struct(&prog->Base, target, id);
+ return &prog->Base;
+ }
+ return NULL;
}
* Initialize a new geometry program object.
*/
struct gl_program *
-_mesa_init_geometry_program( struct gl_context *ctx, struct gl_geometry_program *prog,
- GLenum target, GLuint id)
+_mesa_init_geometry_program(struct gl_context *ctx,
+ struct gl_geometry_program *prog,
+ GLenum target, GLuint id)
{
- if (prog)
- return _mesa_init_program_struct( ctx, &prog->Base, target, id );
- else
- return NULL;
+ if (prog) {
+ init_program_struct(&prog->Base, target, id);
+ return &prog->Base;
+ }
+ return NULL;
}
struct gl_program *prog;
switch (target) {
case GL_VERTEX_PROGRAM_ARB: /* == GL_VERTEX_PROGRAM_NV */
- case GL_VERTEX_STATE_PROGRAM_NV:
prog = _mesa_init_vertex_program(ctx, CALLOC_STRUCT(gl_vertex_program),
target, id );
break;
CALLOC_STRUCT(gl_geometry_program),
target, id);
break;
+ case GL_COMPUTE_PROGRAM_NV:
+ prog = _mesa_init_compute_program(ctx,
+ CALLOC_STRUCT(gl_compute_program),
+ target, id);
+ break;
default:
_mesa_problem(ctx, "bad target in _mesa_new_program");
prog = NULL;
_mesa_delete_program(struct gl_context *ctx, struct gl_program *prog)
{
(void) ctx;
- ASSERT(prog);
- ASSERT(prog->RefCount==0);
+ assert(prog);
+ assert(prog->RefCount==0);
if (prog == &_mesa_DummyProgram)
return;
free(prog->String);
+ free(prog->LocalParams);
if (prog->Instructions) {
_mesa_free_instructions(prog->Instructions, prog->NumInstructions);
_mesa_free_parameter_list(prog->Parameters);
}
+ if (prog->nir) {
+ ralloc_free(prog->nir);
+ }
+
free(prog);
}
if (*ptr && prog) {
/* sanity check */
if ((*ptr)->Target == GL_VERTEX_PROGRAM_ARB)
- ASSERT(prog->Target == GL_VERTEX_PROGRAM_ARB);
+ assert(prog->Target == GL_VERTEX_PROGRAM_ARB);
else if ((*ptr)->Target == GL_FRAGMENT_PROGRAM_ARB)
- ASSERT(prog->Target == GL_FRAGMENT_PROGRAM_ARB ||
+ assert(prog->Target == GL_FRAGMENT_PROGRAM_ARB ||
prog->Target == GL_FRAGMENT_PROGRAM_NV);
else if ((*ptr)->Target == MESA_GEOMETRY_PROGRAM)
- ASSERT(prog->Target == MESA_GEOMETRY_PROGRAM);
+ assert(prog->Target == MESA_GEOMETRY_PROGRAM);
}
#endif
if (*ptr) {
GLboolean deleteFlag;
- /*_glthread_LOCK_MUTEX((*ptr)->Mutex);*/
+ /*mtx_lock(&(*ptr)->Mutex);*/
#if 0
printf("Program %p ID=%u Target=%s Refcount-- to %d\n",
*ptr, (*ptr)->Id,
((*ptr)->Target == MESA_GEOMETRY_PROGRAM ? "GP" : "FP")),
(*ptr)->RefCount - 1);
#endif
- ASSERT((*ptr)->RefCount > 0);
+ assert((*ptr)->RefCount > 0);
(*ptr)->RefCount--;
deleteFlag = ((*ptr)->RefCount == 0);
- /*_glthread_UNLOCK_MUTEX((*ptr)->Mutex);*/
+ /*mtx_lock(&(*ptr)->Mutex);*/
if (deleteFlag) {
- ASSERT(ctx);
+ assert(ctx);
ctx->Driver.DeleteProgram(ctx, *ptr);
}
assert(!*ptr);
if (prog) {
- /*_glthread_LOCK_MUTEX(prog->Mutex);*/
+ /*mtx_lock(&prog->Mutex);*/
prog->RefCount++;
#if 0
printf("Program %p ID=%u Target=%s Refcount++ to %d\n",
(prog->Target == MESA_GEOMETRY_PROGRAM ? "GP" : "FP")),
prog->RefCount);
#endif
- /*_glthread_UNLOCK_MUTEX(prog->Mutex);*/
+ /*mtx_unlock(&prog->Mutex);*/
}
*ptr = prog;
assert(clone->Target == prog->Target);
assert(clone->RefCount == 1);
- clone->String = (GLubyte *) _mesa_strdup((char *) prog->String);
+ clone->String = (GLubyte *) strdup((char *) prog->String);
clone->Format = prog->Format;
clone->Instructions = _mesa_alloc_instructions(prog->NumInstructions);
if (!clone->Instructions) {
if (prog->Parameters)
clone->Parameters = _mesa_clone_parameter_list(prog->Parameters);
- memcpy(clone->LocalParams, prog->LocalParams, sizeof(clone->LocalParams));
- memcpy(clone->LocalParams, prog->LocalParams, sizeof(clone->LocalParams));
+ if (prog->LocalParams) {
+ clone->LocalParams = malloc(MAX_PROGRAM_LOCAL_PARAMS *
+ sizeof(float[4]));
+ if (!clone->LocalParams) {
+ _mesa_reference_program(ctx, &clone, NULL);
+ return NULL;
+ }
+ memcpy(clone->LocalParams, prog->LocalParams,
+ MAX_PROGRAM_LOCAL_PARAMS * sizeof(float[4]));
+ }
clone->IndirectRegisterFiles = prog->IndirectRegisterFiles;
clone->NumInstructions = prog->NumInstructions;
clone->NumTemporaries = prog->NumTemporaries;
const struct gl_vertex_program *vp = gl_vertex_program_const(prog);
struct gl_vertex_program *vpc = gl_vertex_program(clone);
vpc->IsPositionInvariant = vp->IsPositionInvariant;
- vpc->IsNVProgram = vp->IsNVProgram;
}
break;
case GL_FRAGMENT_PROGRAM_ARB:
struct gl_geometry_program *gpc = gl_geometry_program(clone);
gpc->VerticesOut = gp->VerticesOut;
gpc->InputType = gp->InputType;
+ gpc->Invocations = gp->Invocations;
gpc->OutputType = gp->OutputType;
+ gpc->UsesEndPrimitive = gp->UsesEndPrimitive;
+ gpc->UsesStreams = gp->UsesStreams;
}
break;
default:
const GLuint newLength = lenA + lenB;
GLboolean usedTemps[MAX_PROGRAM_TEMPS];
GLuint firstTemp = 0;
- GLbitfield inputsB;
+ GLbitfield64 inputsB;
GLuint i;
- ASSERT(progA->Target == progB->Target);
+ assert(progA->Target == progB->Target);
newInst = _mesa_alloc_instructions(newLength);
if (!newInst)
if (newProg->Target == GL_FRAGMENT_PROGRAM_ARB) {
const struct gl_fragment_program *fprogA, *fprogB;
struct gl_fragment_program *newFprog;
- GLbitfield progB_inputsRead = progB->InputsRead;
+ GLbitfield64 progB_inputsRead = progB->InputsRead;
GLint progB_colorFile, progB_colorIndex;
fprogA = gl_fragment_program_const(progA);
* of progB_colorFile/progB_colorIndex below...
*/
progB_colorFile = PROGRAM_INPUT;
- progB_colorIndex = FRAG_ATTRIB_COL0;
+ progB_colorIndex = VARYING_SLOT_COL0;
/*
* The fragment program may get color from a state var rather than
p->StateIndexes[0] == STATE_INTERNAL &&
p->StateIndexes[1] == STATE_CURRENT_ATTRIB &&
(int) p->StateIndexes[2] == (int) VERT_ATTRIB_COLOR0) {
- progB_inputsRead |= FRAG_BIT_COL0;
+ progB_inputsRead |= VARYING_BIT_COL0;
progB_colorFile = PROGRAM_STATE_VAR;
progB_colorIndex = i;
break;
* new temporary register.
*/
if ((progA->OutputsWritten & BITFIELD64_BIT(FRAG_RESULT_COLOR)) &&
- (progB_inputsRead & FRAG_BIT_COL0)) {
+ (progB_inputsRead & VARYING_BIT_COL0)) {
GLint tempReg = _mesa_find_free_register(usedTemps, MAX_PROGRAM_TEMPS,
firstTemp);
if (tempReg < 0) {
/* compute combined program's InputsRead */
inputsB = progB_inputsRead;
if (progA->OutputsWritten & BITFIELD64_BIT(FRAG_RESULT_COLOR)) {
- inputsB &= ~(1 << FRAG_ATTRIB_COL0);
+ inputsB &= ~(1 << VARYING_SLOT_COL0);
}
newProg->InputsRead = progA->InputsRead | inputsB;
newProg->OutputsWritten = progB->OutputsWritten;
const GLuint n = _mesa_num_inst_src_regs(inst->Opcode);
if (inst->DstReg.File == file) {
- ASSERT(inst->DstReg.Index < usedSize);
+ assert(inst->DstReg.Index < usedSize);
if(inst->DstReg.Index < usedSize)
used[inst->DstReg.Index] = GL_TRUE;
}
for (j = 0; j < n; j++) {
if (inst->SrcReg[j].File == file) {
- ASSERT(inst->SrcReg[j].Index < usedSize);
- if(inst->SrcReg[j].Index < usedSize)
+ assert(inst->SrcReg[j].Index < (GLint) usedSize);
+ if (inst->SrcReg[j].Index < (GLint) usedSize)
used[inst->SrcReg[j].Index] = GL_TRUE;
}
}
*/
GLboolean
_mesa_valid_register_index(const struct gl_context *ctx,
- gl_shader_type shaderType,
+ gl_shader_stage shaderType,
gl_register_file file, GLint index)
{
const struct gl_program_constants *c;
- switch (shaderType) {
- case MESA_SHADER_VERTEX:
- c = &ctx->Const.VertexProgram;
- break;
- case MESA_SHADER_FRAGMENT:
- c = &ctx->Const.FragmentProgram;
- break;
- case MESA_SHADER_GEOMETRY:
- c = &ctx->Const.GeometryProgram;
- break;
- default:
- _mesa_problem(ctx,
- "unexpected shader type in _mesa_valid_register_index()");
- return GL_FALSE;
- }
+ assert(0 <= shaderType && shaderType < MESA_SHADER_STAGES);
+ c = &ctx->Const.Program[shaderType];
switch (file) {
case PROGRAM_UNDEFINED:
return GL_TRUE; /* XXX or maybe false? */
case PROGRAM_TEMPORARY:
- return index >= 0 && index < c->MaxTemps;
-
- case PROGRAM_ENV_PARAM:
- return index >= 0 && index < c->MaxEnvParams;
-
- case PROGRAM_LOCAL_PARAM:
- return index >= 0 && index < c->MaxLocalParams;
-
- case PROGRAM_NAMED_PARAM:
- return index >= 0 && index < c->MaxParameters;
+ return index >= 0 && index < (GLint) c->MaxTemps;
case PROGRAM_UNIFORM:
case PROGRAM_STATE_VAR:
/* aka constant buffer */
- return index >= 0 && index < c->MaxUniformComponents / 4;
+ return index >= 0 && index < (GLint) c->MaxUniformComponents / 4;
case PROGRAM_CONSTANT:
/* constant buffer w/ possible relative negative addressing */
return (index > (int) c->MaxUniformComponents / -4 &&
- index < c->MaxUniformComponents / 4);
+ index < (int) c->MaxUniformComponents / 4);
case PROGRAM_INPUT:
if (index < 0)
switch (shaderType) {
case MESA_SHADER_VERTEX:
- return index < VERT_ATTRIB_GENERIC0 + c->MaxAttribs;
+ return index < VERT_ATTRIB_GENERIC0 + (GLint) c->MaxAttribs;
case MESA_SHADER_FRAGMENT:
- return index < FRAG_ATTRIB_VAR0 + ctx->Const.MaxVarying;
+ return index < VARYING_SLOT_VAR0 + (GLint) ctx->Const.MaxVarying;
case MESA_SHADER_GEOMETRY:
- return index < GEOM_ATTRIB_VAR0 + ctx->Const.MaxVarying;
+ return index < VARYING_SLOT_VAR0 + (GLint) ctx->Const.MaxVarying;
default:
return GL_FALSE;
}
switch (shaderType) {
case MESA_SHADER_VERTEX:
- return index < VERT_RESULT_VAR0 + ctx->Const.MaxVarying;
+ return index < VARYING_SLOT_VAR0 + (GLint) ctx->Const.MaxVarying;
case MESA_SHADER_FRAGMENT:
- return index < FRAG_RESULT_DATA0 + ctx->Const.MaxDrawBuffers;
+ return index < FRAG_RESULT_DATA0 + (GLint) ctx->Const.MaxDrawBuffers;
case MESA_SHADER_GEOMETRY:
- return index < GEOM_RESULT_VAR0 + ctx->Const.MaxVarying;
+ return index < VARYING_SLOT_VAR0 + (GLint) ctx->Const.MaxVarying;
default:
return GL_FALSE;
}
case PROGRAM_ADDRESS:
- return index >= 0 && index < c->MaxAddressRegs;
+ return index >= 0 && index < (GLint) c->MaxAddressRegs;
default:
_mesa_problem(ctx,
}
}
+
+/* Gets the minimum number of shader invocations per fragment.
+ * This function is useful to determine if we need to do per
+ * sample shading or per fragment shading.
+ */
+GLint
+_mesa_get_min_invocations_per_fragment(struct gl_context *ctx,
+ const struct gl_fragment_program *prog,
+ bool ignore_sample_qualifier)
+{
+ /* From ARB_sample_shading specification:
+ * "Using gl_SampleID in a fragment shader causes the entire shader
+ * to be evaluated per-sample."
+ *
+ * "Using gl_SamplePosition in a fragment shader causes the entire
+ * shader to be evaluated per-sample."
+ *
+ * "If MULTISAMPLE or SAMPLE_SHADING_ARB is disabled, sample shading
+ * has no effect."
+ */
+ if (ctx->Multisample.Enabled) {
+ /* The ARB_gpu_shader5 specification says:
+ *
+ * "Use of the "sample" qualifier on a fragment shader input
+ * forces per-sample shading"
+ */
+ if (prog->IsSample && !ignore_sample_qualifier)
+ return MAX2(ctx->DrawBuffer->Visual.samples, 1);
+
+ if (prog->Base.SystemValuesRead & (SYSTEM_BIT_SAMPLE_ID |
+ SYSTEM_BIT_SAMPLE_POS))
+ return MAX2(ctx->DrawBuffer->Visual.samples, 1);
+ else if (ctx->Multisample.SampleShading)
+ return MAX2(ceil(ctx->Multisample.MinSampleShadingValue *
+ ctx->DrawBuffer->Visual.samples), 1);
+ else
+ return 1;
+ }
+ return 1;
+}
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