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-rw-r--r--src/mesa/shader/shader_api.c238
1 files changed, 144 insertions, 94 deletions
diff --git a/src/mesa/shader/shader_api.c b/src/mesa/shader/shader_api.c
index 26d0b3d476..3e28d92fe1 100644
--- a/src/mesa/shader/shader_api.c
+++ b/src/mesa/shader/shader_api.c
@@ -213,6 +213,35 @@ _mesa_lookup_shader_program(GLcontext *ctx, GLuint name)
/**
+ * As above, but record an error if program is not found.
+ */
+static struct gl_shader_program *
+_mesa_lookup_shader_program_err(GLcontext *ctx, GLuint name,
+ const char *caller)
+{
+ if (!name) {
+ _mesa_error(ctx, GL_INVALID_VALUE, caller);
+ return NULL;
+ }
+ else {
+ struct gl_shader_program *shProg = (struct gl_shader_program *)
+ _mesa_HashLookup(ctx->Shared->ShaderObjects, name);
+ if (!shProg) {
+ _mesa_error(ctx, GL_INVALID_VALUE, caller);
+ return NULL;
+ }
+ if (shProg->Type != GL_SHADER_PROGRAM_MESA) {
+ _mesa_error(ctx, GL_INVALID_OPERATION, caller);
+ return NULL;
+ }
+ return shProg;
+ }
+}
+
+
+
+
+/**
* Allocate a new gl_shader object, initialize it.
*/
struct gl_shader *
@@ -315,6 +344,33 @@ _mesa_lookup_shader(GLcontext *ctx, GLuint name)
/**
+ * As above, but record an error if shader is not found.
+ */
+static struct gl_shader *
+_mesa_lookup_shader_err(GLcontext *ctx, GLuint name, const char *caller)
+{
+ if (!name) {
+ _mesa_error(ctx, GL_INVALID_VALUE, caller);
+ return NULL;
+ }
+ else {
+ struct gl_shader *sh = (struct gl_shader *)
+ _mesa_HashLookup(ctx->Shared->ShaderObjects, name);
+ if (!sh) {
+ _mesa_error(ctx, GL_INVALID_VALUE, caller);
+ return NULL;
+ }
+ if (sh->Type == GL_SHADER_PROGRAM_MESA) {
+ _mesa_error(ctx, GL_INVALID_OPERATION, caller);
+ return NULL;
+ }
+ return sh;
+ }
+}
+
+
+
+/**
* Initialize context's shader state.
*/
void
@@ -360,26 +416,42 @@ copy_string(GLchar *dst, GLsizei maxLength, GLsizei *length, const GLchar *src)
}
+static GLboolean
+_mesa_is_program(GLcontext *ctx, GLuint name)
+{
+ struct gl_shader_program *shProg = _mesa_lookup_shader_program(ctx, name);
+ return shProg ? GL_TRUE : GL_FALSE;
+}
+
+
+static GLboolean
+_mesa_is_shader(GLcontext *ctx, GLuint name)
+{
+ struct gl_shader *shader = _mesa_lookup_shader(ctx, name);
+ return shader ? GL_TRUE : GL_FALSE;
+}
+
+
/**
* Called via ctx->Driver.AttachShader()
*/
static void
_mesa_attach_shader(GLcontext *ctx, GLuint program, GLuint shader)
{
- struct gl_shader_program *shProg
- = _mesa_lookup_shader_program(ctx, program);
- struct gl_shader *sh = _mesa_lookup_shader(ctx, shader);
- GLuint n;
- GLuint i;
+ struct gl_shader_program *shProg;
+ struct gl_shader *sh;
+ GLuint i, n;
- if (!shProg || !sh) {
- _mesa_error(ctx, GL_INVALID_VALUE,
- "glAttachShader(bad program or shader name)");
+ shProg = _mesa_lookup_shader_program_err(ctx, program, "glAttachShader");
+ if (!shProg)
+ return;
+
+ sh = _mesa_lookup_shader_err(ctx, shader, "glAttachShader");
+ if (!sh) {
return;
}
n = shProg->NumShaders;
-
for (i = 0; i < n; i++) {
if (shProg->Shaders[i] == sh) {
/* already attached */
@@ -409,10 +481,9 @@ _mesa_get_attrib_location(GLcontext *ctx, GLuint program,
const GLchar *name)
{
struct gl_shader_program *shProg
- = _mesa_lookup_shader_program(ctx, program);
+ = _mesa_lookup_shader_program_err(ctx, program, "glGetAttribLocation");
if (!shProg) {
- _mesa_error(ctx, GL_INVALID_VALUE, "glGetAttribLocation");
return -1;
}
@@ -439,13 +510,13 @@ static void
_mesa_bind_attrib_location(GLcontext *ctx, GLuint program, GLuint index,
const GLchar *name)
{
- struct gl_shader_program *shProg
- = _mesa_lookup_shader_program(ctx, program);
+ struct gl_shader_program *shProg;
const GLint size = -1; /* unknown size */
GLint i, oldIndex;
+ shProg = _mesa_lookup_shader_program_err(ctx, program,
+ "glBindAttribLocation");
if (!shProg) {
- _mesa_error(ctx, GL_INVALID_VALUE, "glBindAttribLocation(program)");
return;
}
@@ -458,6 +529,11 @@ _mesa_bind_attrib_location(GLcontext *ctx, GLuint program, GLuint index,
return;
}
+ if (index >= ctx->Const.VertexProgram.MaxAttribs) {
+ _mesa_error(ctx, GL_INVALID_VALUE, "glBindAttribLocation(index)");
+ return;
+ }
+
if (shProg->LinkStatus) {
/* get current index/location for the attribute */
oldIndex = _mesa_get_attrib_location(ctx, program, name);
@@ -539,11 +615,9 @@ _mesa_delete_program2(GLcontext *ctx, GLuint name)
*/
struct gl_shader_program *shProg;
- shProg = _mesa_lookup_shader_program(ctx, name);
- if (!shProg) {
- _mesa_error(ctx, GL_INVALID_VALUE, "glDeleteProgram(name)");
+ shProg = _mesa_lookup_shader_program_err(ctx, name, "glDeleteProgram");
+ if (!shProg)
return;
- }
shProg->DeletePending = GL_TRUE;
@@ -555,10 +629,11 @@ _mesa_delete_program2(GLcontext *ctx, GLuint name)
static void
_mesa_delete_shader(GLcontext *ctx, GLuint shader)
{
- struct gl_shader *sh = _mesa_lookup_shader(ctx, shader);
- if (!sh) {
+ struct gl_shader *sh;
+
+ sh = _mesa_lookup_shader_err(ctx, shader, "glDeleteShader");
+ if (!sh)
return;
- }
sh->DeletePending = GL_TRUE;
@@ -570,16 +645,13 @@ _mesa_delete_shader(GLcontext *ctx, GLuint shader)
static void
_mesa_detach_shader(GLcontext *ctx, GLuint program, GLuint shader)
{
- struct gl_shader_program *shProg
- = _mesa_lookup_shader_program(ctx, program);
+ struct gl_shader_program *shProg;
GLuint n;
GLuint i, j;
- if (!shProg) {
- _mesa_error(ctx, GL_INVALID_VALUE,
- "glDetachShader(bad program or shader name)");
+ shProg = _mesa_lookup_shader_program_err(ctx, program, "glDetachShader");
+ if (!shProg)
return;
- }
n = shProg->NumShaders;
@@ -588,7 +660,7 @@ _mesa_detach_shader(GLcontext *ctx, GLuint program, GLuint shader)
/* found it */
struct gl_shader **newList;
- /* derefernce */
+ /* release */
_mesa_reference_shader(ctx, &shProg->Shaders[i], NULL);
/* alloc new, smaller array */
@@ -624,8 +696,17 @@ _mesa_detach_shader(GLcontext *ctx, GLuint program, GLuint shader)
}
/* not found */
- _mesa_error(ctx, GL_INVALID_VALUE,
- "glDetachShader(shader not found)");
+ {
+ GLenum err;
+ if (_mesa_is_shader(ctx, shader))
+ err = GL_INVALID_OPERATION;
+ else if (_mesa_is_program(ctx, shader))
+ err = GL_INVALID_OPERATION;
+ else
+ err = GL_INVALID_VALUE;
+ _mesa_error(ctx, err, "glDetachProgram(shader)");
+ return;
+ }
}
@@ -637,14 +718,12 @@ _mesa_get_active_attrib(GLcontext *ctx, GLuint program, GLuint index,
static const GLenum vec_types[] = {
GL_FLOAT, GL_FLOAT_VEC2, GL_FLOAT_VEC3, GL_FLOAT_VEC4
};
- struct gl_shader_program *shProg
- = _mesa_lookup_shader_program(ctx, program);
+ struct gl_shader_program *shProg;
GLint sz;
- if (!shProg) {
- _mesa_error(ctx, GL_INVALID_VALUE, "glGetActiveAttrib");
+ shProg = _mesa_lookup_shader_program_err(ctx, program, "glGetActiveAttrib");
+ if (!shProg)
return;
- }
if (!shProg->Attributes || index >= shProg->Attributes->NumParameters) {
_mesa_error(ctx, GL_INVALID_VALUE, "glGetActiveAttrib(index)");
@@ -669,15 +748,13 @@ _mesa_get_active_uniform(GLcontext *ctx, GLuint program, GLuint index,
GLsizei maxLength, GLsizei *length, GLint *size,
GLenum *type, GLchar *nameOut)
{
- const struct gl_shader_program *shProg
- = _mesa_lookup_shader_program(ctx, program);
+ const struct gl_shader_program *shProg;
const struct gl_program *prog;
GLint progPos;
- if (!shProg) {
- _mesa_error(ctx, GL_INVALID_VALUE, "glGetActiveUniform");
+ shProg = _mesa_lookup_shader_program_err(ctx, program, "glGetActiveUniform");
+ if (!shProg)
return;
- }
if (!shProg->Uniforms || index >= shProg->Uniforms->NumUniforms) {
_mesa_error(ctx, GL_INVALID_VALUE, "glGetActiveUniform(index)");
@@ -716,19 +793,16 @@ static void
_mesa_get_attached_shaders(GLcontext *ctx, GLuint program, GLsizei maxCount,
GLsizei *count, GLuint *obj)
{
- struct gl_shader_program *shProg
- = _mesa_lookup_shader_program(ctx, program);
+ struct gl_shader_program *shProg =
+ _mesa_lookup_shader_program_err(ctx, program, "glGetAttachedShaders");
if (shProg) {
GLuint i;
- for (i = 0; i < maxCount && i < shProg->NumShaders; i++) {
+ for (i = 0; i < (GLuint) maxCount && i < shProg->NumShaders; i++) {
obj[i] = shProg->Shaders[i]->Name;
}
if (count)
*count = i;
}
- else {
- _mesa_error(ctx, GL_INVALID_VALUE, "glGetAttachedShaders");
- }
}
@@ -809,10 +883,9 @@ _mesa_get_programiv(GLcontext *ctx, GLuint program,
static void
_mesa_get_shaderiv(GLcontext *ctx, GLuint name, GLenum pname, GLint *params)
{
- struct gl_shader *shader = _mesa_lookup_shader(ctx, name);
+ struct gl_shader *shader = _mesa_lookup_shader_err(ctx, name, "glGetShaderiv");
if (!shader) {
- _mesa_error(ctx, GL_INVALID_VALUE, "glGetShaderiv(shader)");
return;
}
@@ -873,14 +946,9 @@ static void
_mesa_get_shader_source(GLcontext *ctx, GLuint shader, GLsizei maxLength,
GLsizei *length, GLchar *sourceOut)
{
- struct gl_shader *sh = _mesa_lookup_shader(ctx, shader);
+ struct gl_shader *sh;
+ sh = _mesa_lookup_shader_err(ctx, shader, "glGetShaderSource");
if (!sh) {
- GLenum err;
- if (_mesa_lookup_shader_program(ctx, shader))
- err = GL_INVALID_OPERATION;
- else
- err = GL_INVALID_VALUE;
- _mesa_error(ctx, err, "glGetShaderSource(shader)");
return;
}
copy_string(sourceOut, maxLength, length, sh->Source);
@@ -937,28 +1005,17 @@ _mesa_get_uniformfv(GLcontext *ctx, GLuint program, GLint location,
static GLint
_mesa_get_uniform_location(GLcontext *ctx, GLuint program, const GLchar *name)
{
- struct gl_shader_program *shProg
- = _mesa_lookup_shader_program(ctx, program);
+ struct gl_shader_program *shProg =
+ _mesa_lookup_shader_program_err(ctx, program, "glGetUniformLocation");
+
if (!shProg)
return -1;
- return _mesa_lookup_uniform(shProg->Uniforms, name);
-}
-
-
-static GLboolean
-_mesa_is_program(GLcontext *ctx, GLuint name)
-{
- struct gl_shader_program *shProg = _mesa_lookup_shader_program(ctx, name);
- return shProg ? GL_TRUE : GL_FALSE;
-}
-
+ /* XXX we should return -1 if the uniform was declared, but not
+ * actually used.
+ */
-static GLboolean
-_mesa_is_shader(GLcontext *ctx, GLuint name)
-{
- struct gl_shader *shader = _mesa_lookup_shader(ctx, name);
- return shader ? GL_TRUE : GL_FALSE;
+ return _mesa_lookup_uniform(shProg->Uniforms, name);
}
@@ -969,16 +1026,11 @@ _mesa_is_shader(GLcontext *ctx, GLuint name)
static void
_mesa_shader_source(GLcontext *ctx, GLuint shader, const GLchar *source)
{
- struct gl_shader *sh = _mesa_lookup_shader(ctx, shader);
- if (!sh) {
- GLenum err;
- if (_mesa_lookup_shader_program(ctx, shader))
- err = GL_INVALID_OPERATION;
- else
- err = GL_INVALID_VALUE;
- _mesa_error(ctx, err, "glShaderSource(shaderObj)");
+ struct gl_shader *sh;
+
+ sh = _mesa_lookup_shader_err(ctx, shader, "glShaderSource");
+ if (!sh)
return;
- }
/* free old shader source string and install new one */
if (sh->Source) {
@@ -995,12 +1047,11 @@ _mesa_shader_source(GLcontext *ctx, GLuint shader, const GLchar *source)
static void
_mesa_compile_shader(GLcontext *ctx, GLuint shaderObj)
{
- struct gl_shader *sh = _mesa_lookup_shader(ctx, shaderObj);
+ struct gl_shader *sh;
- if (!sh) {
- _mesa_error(ctx, GL_INVALID_VALUE, "glCompileShader(shaderObj)");
+ sh = _mesa_lookup_shader_err(ctx, shaderObj, "glCompileShader");
+ if (!sh)
return;
- }
sh->CompileStatus = _slang_compile(ctx, sh);
}
@@ -1014,11 +1065,9 @@ _mesa_link_program(GLcontext *ctx, GLuint program)
{
struct gl_shader_program *shProg;
- shProg = _mesa_lookup_shader_program(ctx, program);
- if (!shProg) {
- _mesa_error(ctx, GL_INVALID_VALUE, "glLinkProgram(program)");
+ shProg = _mesa_lookup_shader_program_err(ctx, program, "glLinkProgram");
+ if (!shProg)
return;
- }
FLUSH_VERTICES(ctx, _NEW_PROGRAM);
@@ -1043,10 +1092,12 @@ _mesa_use_program(GLcontext *ctx, GLuint program)
FLUSH_VERTICES(ctx, _NEW_PROGRAM);
if (program) {
- shProg = _mesa_lookup_shader_program(ctx, program);
+ shProg = _mesa_lookup_shader_program_err(ctx, program, "glUseProgram");
if (!shProg) {
- _mesa_error(ctx, GL_INVALID_VALUE,
- "glUseProgramObjectARB(programObj)");
+ return;
+ }
+ if (!shProg->LinkStatus) {
+ _mesa_error(ctx, GL_INVALID_OPERATION, "glUseProgram");
return;
}
}
@@ -1170,7 +1221,6 @@ _mesa_uniform(GLcontext *ctx, GLint location, GLsizei count,
if (location == -1)
return; /* The standard specifies this as a no-op */
-
if (location < 0 || location >= (GLint) shProg->Uniforms->NumUniforms) {
_mesa_error(ctx, GL_INVALID_VALUE, "glUniform(location)");
return;