diff options
| -rw-r--r-- | src/mesa/shader/shader_api.c | 129 |
1 files changed, 79 insertions, 50 deletions
diff --git a/src/mesa/shader/shader_api.c b/src/mesa/shader/shader_api.c index c05d052f43e..3c530d17271 100644 --- a/src/mesa/shader/shader_api.c +++ b/src/mesa/shader/shader_api.c @@ -1073,6 +1073,71 @@ _mesa_get_shader_source(GLcontext *ctx, GLuint shader, GLsizei maxLength, } +static void +get_matrix_dims(GLenum type, GLint *rows, GLint *cols) +{ + switch (type) { + case GL_FLOAT_MAT2: + *rows = *cols = 2; + break; + case GL_FLOAT_MAT2x3: + *rows = 3; + *cols = 2; + break; + case GL_FLOAT_MAT2x4: + *rows = 4; + *cols = 2; + break; + case GL_FLOAT_MAT3: + *rows = 3; + *cols = 3; + break; + case GL_FLOAT_MAT3x2: + *rows = 2; + *cols = 3; + break; + case GL_FLOAT_MAT3x4: + *rows = 4; + *cols = 3; + break; + case GL_FLOAT_MAT4: + *rows = 4; + *cols = 4; + break; + case GL_FLOAT_MAT4x2: + *rows = 2; + *cols = 4; + break; + case GL_FLOAT_MAT4x3: + *rows = 3; + *cols = 4; + break; + default: + *rows = *cols = 0; + } +} + + +/** + * Determine the number of rows and columns occupied by a uniform + * according to its datatype. + */ +static void +get_uniform_rows_cols(const struct gl_program_parameter *p, + GLint *rows, GLint *cols) +{ + get_matrix_dims(p->DataType, rows, cols); + if (*rows == 0 && *cols == 0) { + /* not a matrix type, probably a float or vector */ + *rows = p->Size / 4 + 1; + if (p->Size % 4 == 0) + *cols = 4; + else + *cols = p->Size % 4; + } +} + + #define MAX_UNIFORM_ELEMENTS 16 /** @@ -1089,7 +1154,6 @@ get_uniformfv(GLcontext *ctx, GLuint program, GLint location, if (shProg->Uniforms && location >= 0 && location < (GLint) shProg->Uniforms->NumUniforms) { GLint progPos; - GLuint i; const struct gl_program *prog = NULL; progPos = shProg->Uniforms->Uniforms[location].VertPos; @@ -1105,13 +1169,23 @@ get_uniformfv(GLcontext *ctx, GLuint program, GLint location, ASSERT(prog); if (prog) { + const struct gl_program_parameter *p = + &prog->Parameters->Parameters[progPos]; + GLint rows, cols, i, j, k; + /* See uniformiv() below */ - assert(prog->Parameters->Parameters[progPos].Size <= MAX_UNIFORM_ELEMENTS); + assert(p->Size <= MAX_UNIFORM_ELEMENTS); + + get_uniform_rows_cols(p, &rows, &cols); - for (i = 0; i < prog->Parameters->Parameters[progPos].Size; i++) { - params[i] = prog->Parameters->ParameterValues[progPos][i]; + k = 0; + for (i = 0; i < rows; i++) { + for (j = 0; j < cols; j++ ) { + params[k++] = prog->Parameters->ParameterValues[progPos+i][j]; + } } - return prog->Parameters->Parameters[progPos].Size; + + return p->Size; } } else { @@ -1595,51 +1669,6 @@ _mesa_uniform(GLcontext *ctx, GLint location, GLsizei count, * Set a matrix-valued program parameter. */ static void -get_matrix_dims(GLenum type, GLint *rows, GLint *cols) -{ - switch (type) { - case GL_FLOAT_MAT2: - *rows = *cols = 2; - break; - case GL_FLOAT_MAT2x3: - *rows = 3; - *cols = 2; - break; - case GL_FLOAT_MAT2x4: - *rows = 4; - *cols = 2; - break; - case GL_FLOAT_MAT3: - *rows = 3; - *cols = 3; - break; - case GL_FLOAT_MAT3x2: - *rows = 2; - *cols = 3; - break; - case GL_FLOAT_MAT3x4: - *rows = 4; - *cols = 3; - break; - case GL_FLOAT_MAT4: - *rows = 4; - *cols = 4; - break; - case GL_FLOAT_MAT4x2: - *rows = 2; - *cols = 4; - break; - case GL_FLOAT_MAT4x3: - *rows = 3; - *cols = 4; - break; - default: - *rows = *cols = 0; - } -} - - -static void set_program_uniform_matrix(GLcontext *ctx, struct gl_program *program, GLuint index, GLuint offset, GLuint count, GLuint rows, GLuint cols, |