*/
+#include <stdbool.h>
#include "main/glheader.h"
#include "main/context.h"
#include "main/dispatch.h"
#include "main/shaderobj.h"
#include "main/transformfeedback.h"
#include "main/uniforms.h"
+#include "glsl/glsl_parser_extras.h"
+#include "glsl/ir.h"
+#include "glsl/ir_uniform.h"
+#include "glsl/program.h"
#include "program/program.h"
#include "program/prog_print.h"
#include "program/prog_parameter.h"
#include "util/ralloc.h"
#include "util/hash_table.h"
-#include <stdbool.h>
-#include "../glsl/glsl_parser_extras.h"
-#include "../glsl/ir.h"
-#include "../glsl/ir_uniform.h"
-#include "../glsl/program.h"
-
-/** Define this to enable shader substitution (see below) */
-#define SHADER_SUBST 0
+#include "util/mesa-sha1.h"
/**
case GL_TESS_EVALUATION_SHADER:
return ctx == NULL || _mesa_has_tessellation(ctx);
case GL_COMPUTE_SHADER:
- return ctx == NULL || ctx->Extensions.ARB_compute_shader;
+ return ctx == NULL || _mesa_has_compute_shaders(ctx);
default:
return false;
}
GLuint name;
if (!_mesa_validate_shader_target(ctx, type)) {
- _mesa_error(ctx, GL_INVALID_ENUM, "CreateShader(type)");
+ _mesa_error(ctx, GL_INVALID_ENUM, "CreateShader(%s)",
+ _mesa_enum_to_string(type));
return 0;
}
name = _mesa_HashFindFreeKeyBlock(ctx->Shared->ShaderObjects, 1);
- shProg = ctx->Driver.NewShaderProgram(name);
+ shProg = _mesa_new_shader_program(name);
_mesa_HashInsert(ctx->Shared->ShaderObjects, name, shProg);
case GL_ACTIVE_ATTRIBUTE_MAX_LENGTH:
*params = _mesa_longest_attribute_name_length(shProg);
return;
- case GL_ACTIVE_UNIFORMS:
- *params = shProg->NumUniformStorage - shProg->NumHiddenUniforms;
+ case GL_ACTIVE_UNIFORMS: {
+ unsigned i;
+ const unsigned num_uniforms =
+ shProg->NumUniformStorage - shProg->NumHiddenUniforms;
+ for (*params = 0, i = 0; i < num_uniforms; i++) {
+ if (!shProg->UniformStorage[i].is_shader_storage)
+ (*params)++;
+ }
return;
+ }
case GL_ACTIVE_UNIFORM_MAX_LENGTH: {
unsigned i;
GLint max_len = 0;
shProg->NumUniformStorage - shProg->NumHiddenUniforms;
for (i = 0; i < num_uniforms; i++) {
+ if (shProg->UniformStorage[i].is_shader_storage)
+ continue;
+
/* Add one for the terminating NUL character for a non-array, and
* 4 for the "[0]" and the NUL for an array.
*/
for (i = 0; i < shProg->NumUniformBlocks; i++) {
/* Add one for the terminating NUL character.
*/
- const GLint len = strlen(shProg->UniformBlocks[i].Name) + 1;
+ const GLint len = strlen(shProg->UniformBlocks[i]->Name) + 1;
if (len > max_len)
max_len = len;
return;
case GL_COMPUTE_WORK_GROUP_SIZE: {
int i;
- if (!_mesa_is_desktop_gl(ctx) || !ctx->Extensions.ARB_compute_shader)
+ if (!_mesa_has_compute_shaders(ctx))
break;
if (!shProg->LinkStatus) {
_mesa_error(ctx, GL_INVALID_OPERATION, "glGetProgramiv(program not "
return;
}
case GL_PROGRAM_SEPARABLE:
- *params = shProg->SeparateShader;
+ /* If the program has not been linked, return initial value 0. */
+ *params = (shProg->LinkStatus == GL_FALSE) ? 0 : shProg->SeparateShader;
return;
/* ARB_tessellation_shader */
* glShaderSource[ARB].
*/
static void
-shader_source(struct gl_context *ctx, GLuint shader, const GLchar *source)
+shader_source(struct gl_shader *sh, const GLchar *source)
{
- struct gl_shader *sh;
-
- sh = _mesa_lookup_shader_err(ctx, shader, "glShaderSource");
- if (!sh)
- return;
+ assert(sh);
/* free old shader source string and install new one */
free((void *)sh->Source);
void GLAPIENTRY
-_mesa_CompileShader(GLhandleARB shaderObj)
+_mesa_CompileShader(GLuint shaderObj)
{
GET_CURRENT_CONTEXT(ctx);
if (MESA_VERBOSE & VERBOSE_API)
void GLAPIENTRY
-_mesa_GetShaderSource(GLhandleARB shader, GLsizei maxLength,
- GLsizei *length, GLcharARB *sourceOut)
+_mesa_GetShaderSource(GLuint shader, GLsizei maxLength,
+ GLsizei *length, GLchar *sourceOut)
{
GET_CURRENT_CONTEXT(ctx);
get_shader_source(ctx, shader, maxLength, length, sourceOut);
void GLAPIENTRY
-_mesa_LinkProgram(GLhandleARB programObj)
+_mesa_LinkProgram(GLuint programObj)
{
GET_CURRENT_CONTEXT(ctx);
+ if (MESA_VERBOSE & VERBOSE_API)
+ _mesa_debug(ctx, "glLinkProgram %u\n", programObj);
link_program(ctx, programObj);
}
+#if defined(HAVE_SHA1)
+/**
+ * Generate a SHA-1 hash value string for given source string.
+ */
+static void
+generate_sha1(const char *source, char sha_str[64])
+{
+ unsigned char sha[20];
+ _mesa_sha1_compute(source, strlen(source), sha);
+ _mesa_sha1_format(sha_str, sha);
+}
+/**
+ * Construct a full path for shader replacement functionality using
+ * following format:
+ *
+ * <path>/<stage prefix>_<CHECKSUM>.glsl
+ */
+static void
+construct_name(const gl_shader_stage stage, const char *source,
+ const char *path, char *name, unsigned length)
+{
+ char sha[64];
+ static const char *types[] = {
+ "VS", "TC", "TE", "GS", "FS", "CS",
+ };
+
+ generate_sha1(source, sha);
+ _mesa_snprintf(name, length, "%s/%s_%s.glsl", path, types[stage],
+ sha);
+}
+
+/**
+ * Write given shader source to a file in MESA_SHADER_DUMP_PATH.
+ */
+static void
+dump_shader(const gl_shader_stage stage, const char *source)
+{
+ char name[PATH_MAX];
+ static bool path_exists = true;
+ char *dump_path;
+ FILE *f;
+
+ if (!path_exists)
+ return;
+
+ dump_path = getenv("MESA_SHADER_DUMP_PATH");
+ if (!dump_path) {
+ path_exists = false;
+ return;
+ }
+
+ construct_name(stage, source, dump_path, name, PATH_MAX);
+
+ f = fopen(name, "w");
+ if (f) {
+ fputs(source, f);
+ fclose(f);
+ } else {
+ GET_CURRENT_CONTEXT(ctx);
+ _mesa_warning(ctx, "could not open %s for dumping shader (%s)", name,
+ strerror(errno));
+ }
+}
/**
* Read shader source code from a file.
* Useful for debugging to override an app's shader.
*/
static GLcharARB *
-read_shader(const char *fname)
+read_shader(const gl_shader_stage stage, const char *source)
{
- int shader_size = 0;
- FILE *f = fopen(fname, "r");
- GLcharARB *buffer, *shader;
- int len;
+ char name[PATH_MAX];
+ char *read_path;
+ static bool path_exists = true;
+ int len, shader_size = 0;
+ GLcharARB *buffer;
+ FILE *f;
+
+ if (!path_exists)
+ return NULL;
- if (!f) {
+ read_path = getenv("MESA_SHADER_READ_PATH");
+ if (!read_path) {
+ path_exists = false;
return NULL;
}
+ construct_name(stage, source, read_path, name, PATH_MAX);
+
+ f = fopen(name, "r");
+ if (!f)
+ return NULL;
+
/* allocate enough room for the entire shader */
fseek(f, 0, SEEK_END);
shader_size = ftell(f);
fclose(f);
- shader = strdup(buffer);
- free(buffer);
-
- return shader;
+ return buffer;
}
-
+#endif /* HAVE_SHA1 */
/**
* Called via glShaderSource() and glShaderSourceARB() API functions.
* and pass it to _mesa_shader_source().
*/
void GLAPIENTRY
-_mesa_ShaderSource(GLhandleARB shaderObj, GLsizei count,
- const GLcharARB * const * string, const GLint * length)
+_mesa_ShaderSource(GLuint shaderObj, GLsizei count,
+ const GLchar * const * string, const GLint * length)
{
GET_CURRENT_CONTEXT(ctx);
GLint *offsets;
GLsizei i, totalLength;
GLcharARB *source;
- GLuint checksum;
+ struct gl_shader *sh;
+
+#if defined(HAVE_SHA1)
+ GLcharARB *replacement;
+#endif /* HAVE_SHA1 */
+
+ sh = _mesa_lookup_shader_err(ctx, shaderObj, "glShaderSourceARB");
+ if (!sh)
+ return;
- if (!shaderObj || string == NULL) {
+ if (string == NULL) {
_mesa_error(ctx, GL_INVALID_VALUE, "glShaderSourceARB");
return;
}
source[totalLength - 1] = '\0';
source[totalLength - 2] = '\0';
- if (SHADER_SUBST) {
- /* Compute the shader's source code checksum then try to open a file
- * named newshader_<CHECKSUM>. If it exists, use it in place of the
- * original shader source code. For debugging.
- */
- char filename[100];
- GLcharARB *newSource;
-
- checksum = _mesa_str_checksum(source);
-
- _mesa_snprintf(filename, sizeof(filename), "newshader_%d", checksum);
+#if defined(HAVE_SHA1)
+ /* Dump original shader source to MESA_SHADER_DUMP_PATH and replace
+ * if corresponding entry found from MESA_SHADER_READ_PATH.
+ */
+ dump_shader(sh->Stage, source);
- newSource = read_shader(filename);
- if (newSource) {
- fprintf(stderr, "Mesa: Replacing shader %u chksum=%d with %s\n",
- shaderObj, checksum, filename);
- free(source);
- source = newSource;
- }
+ replacement = read_shader(sh->Stage, source);
+ if (replacement) {
+ free(source);
+ source = replacement;
}
+#endif /* HAVE_SHA1 */
- shader_source(ctx, shaderObj, source);
-
- if (SHADER_SUBST) {
- struct gl_shader *sh = _mesa_lookup_shader(ctx, shaderObj);
- if (sh)
- sh->SourceChecksum = checksum; /* save original checksum */
- }
+ shader_source(sh, source);
free(offsets);
}
void GLAPIENTRY
-_mesa_UseProgram(GLhandleARB program)
+_mesa_UseProgram(GLuint program)
{
GET_CURRENT_CONTEXT(ctx);
struct gl_shader_program *shProg;
+ if (MESA_VERBOSE & VERBOSE_API)
+ _mesa_debug(ctx, "glUseProgram %u\n", program);
+
if (_mesa_is_xfb_active_and_unpaused(ctx)) {
_mesa_error(ctx, GL_INVALID_OPERATION,
"glUseProgram(transform feedback active)");
void GLAPIENTRY
-_mesa_ValidateProgram(GLhandleARB program)
+_mesa_ValidateProgram(GLuint program)
{
GET_CURRENT_CONTEXT(ctx);
validate_program(ctx, program);
{
switch (type) {
case MESA_SHADER_VERTEX:
- dst->UsesClipDistanceOut = src->Vert.UsesClipDistance;
+ dst->ClipDistanceArraySize = src->Vert.ClipDistanceArraySize;
break;
case MESA_SHADER_TESS_CTRL: {
struct gl_tess_ctrl_program *dst_tcp =
dst_tep->Spacing = src->TessEval.Spacing;
dst_tep->VertexOrder = src->TessEval.VertexOrder;
dst_tep->PointMode = src->TessEval.PointMode;
- dst->UsesClipDistanceOut = src->TessEval.UsesClipDistance;
+ dst->ClipDistanceArraySize = src->TessEval.ClipDistanceArraySize;
break;
}
case MESA_SHADER_GEOMETRY: {
dst_gp->Invocations = src->Geom.Invocations;
dst_gp->InputType = src->Geom.InputType;
dst_gp->OutputType = src->Geom.OutputType;
- dst->UsesClipDistanceOut = src->Geom.UsesClipDistance;
+ dst->ClipDistanceArraySize = src->Geom.ClipDistanceArraySize;
dst_gp->UsesEndPrimitive = src->Geom.UsesEndPrimitive;
dst_gp->UsesStreams = src->Geom.UsesStreams;
break;
i = 0;
do {
struct gl_uniform_storage *uni = sh->SubroutineUniformRemapTable[i];
+ if (uni == NULL) {
+ i++;
+ continue;
+ }
+
int uni_count = uni->array_elements ? uni->array_elements : 1;
int j, k;
i = 0;
do {
struct gl_uniform_storage *uni = sh->SubroutineUniformRemapTable[i];
+ if (uni == NULL) {
+ i++;
+ continue;
+ }
+
int uni_count = uni->array_elements ? uni->array_elements : 1;
memcpy(&uni->storage[0], &indices[i],
{
struct gl_uniform_storage *uni = sh->SubroutineUniformRemapTable[location];
- int offset = location - uni->subroutine[stage].index;
+ int offset = location - uni->opaque[stage].index;
memcpy(params, &uni->storage[offset],
sizeof(GLuint));
}