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Make use of count in _mesa_uniform_matrix

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This commit is contained in:
Bruce Merry 2007-12-21 16:04:43 +02:00 • committed by Brian
parent 3f9dc9f5b6
commit e9ac27ee23
1 changed files with 25 additions and 13 deletions
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38
src/mesa/shader/shader_api.c
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@ -1279,6 +1279,7 @@ _mesa_uniform_matrix(GLcontext *ctx, GLint cols, GLint rows,
GLenum matrixType, GLint location, GLsizei count,
GLboolean transpose, const GLfloat *values)
{
GLsizei maxCount, i;
struct gl_shader_program *shProg = ctx->Shader.CurrentProgram;
if (!shProg || !shProg->LinkStatus) {
_mesa_error(ctx, GL_INVALID_OPERATION,
@ -1298,6 +1299,10 @@ _mesa_uniform_matrix(GLcontext *ctx, GLint cols, GLint rows,
_mesa_error(ctx, GL_INVALID_VALUE, "glUniformMatrix");
return;
}
if (count < 0) {
_mesa_error(ctx, GL_INVALID_VALUE, "glUniformMatrix(count < 0)");
return;
}
FLUSH_VERTICES(ctx, _NEW_PROGRAM);
@ -1306,23 +1311,30 @@ _mesa_uniform_matrix(GLcontext *ctx, GLint cols, GLint rows,
* the rows.
*/
/* XXXX need to test 3x3 and 2x2 matrices... */
if (transpose) {
GLuint row, col;
for (col = 0; col < cols; col++) {
GLfloat *v = shProg->Uniforms->ParameterValues[location + col];
for (row = 0; row < rows; row++) {
v[row] = values[row * cols + col];
maxCount = shProg->Uniforms->Parameters[location].Size / (4 * cols);
if (count > maxCount)
count = maxCount;
for (i = 0; i < count; i++) {
if (transpose) {
GLuint row, col;
for (col = 0; col < cols; col++) {
GLfloat *v = shProg->Uniforms->ParameterValues[location + col];
for (row = 0; row < rows; row++) {
v[row] = values[row * cols + col];
}
}
}
}
else {
GLuint row, col;
for (col = 0; col < cols; col++) {
GLfloat *v = shProg->Uniforms->ParameterValues[location + col];
for (row = 0; row < rows; row++) {
v[row] = values[col * rows + row];
else {
GLuint row, col;
for (col = 0; col < cols; col++) {
GLfloat *v = shProg->Uniforms->ParameterValues[location + col];
for (row = 0; row < rows; row++) {
v[row] = values[col * rows + row];
}
}
}
location += cols;
values += rows * cols;
}
}