diff options
| -rw-r--r-- | src/mesa/main/uniform_query.cpp | 53 |
1 files changed, 37 insertions, 16 deletions
diff --git a/src/mesa/main/uniform_query.cpp b/src/mesa/main/uniform_query.cpp index 0bee59455a3..ae14b2198db 100644 --- a/src/mesa/main/uniform_query.cpp +++ b/src/mesa/main/uniform_query.cpp @@ -319,19 +319,12 @@ _mesa_get_uniform(struct gl_context *ctx, GLuint program, GLint location, return; } - if ((uni->type->base_type == GLSL_TYPE_DOUBLE && - returnType != GLSL_TYPE_DOUBLE) || - (uni->type->base_type != GLSL_TYPE_DOUBLE && - returnType == GLSL_TYPE_DOUBLE)) { - _mesa_error( ctx, GL_INVALID_OPERATION, - "glGetnUniform*vARB(incompatible uniform types)"); - return; - } { unsigned elements = (uni->type->is_sampler()) ? 1 : uni->type->components(); const int dmul = uni->type->base_type == GLSL_TYPE_DOUBLE ? 2 : 1; + const int rmul = returnType == GLSL_TYPE_DOUBLE ? 2 : 1; /* Calculate the source base address *BEFORE* modifying elements to * account for the size of the user's buffer. @@ -343,7 +336,7 @@ _mesa_get_uniform(struct gl_context *ctx, GLuint program, GLint location, returnType == GLSL_TYPE_UINT || returnType == GLSL_TYPE_DOUBLE); /* doubles have a different size than the other 3 types */ - unsigned bytes = sizeof(src[0]) * elements * dmul; + unsigned bytes = sizeof(src[0]) * elements * rmul; if (bufSize < 0 || bytes > (unsigned) bufSize) { _mesa_error( ctx, GL_INVALID_OPERATION, "glGetnUniform*vARB(out of bounds: bufSize is %d," @@ -367,32 +360,57 @@ _mesa_get_uniform(struct gl_context *ctx, GLuint program, GLint location, } else { union gl_constant_value *const dst = (union gl_constant_value *) paramsOut; - /* This code could be optimized by putting the loop inside the switch * statements. However, this is not expected to be * performance-critical code. */ for (unsigned i = 0; i < elements; i++) { + int sidx = i * dmul; + int didx = i * rmul; + switch (returnType) { case GLSL_TYPE_FLOAT: switch (uni->type->base_type) { case GLSL_TYPE_UINT: - dst[i].f = (float) src[i].u; + dst[didx].f = (float) src[sidx].u; break; case GLSL_TYPE_INT: case GLSL_TYPE_SAMPLER: case GLSL_TYPE_IMAGE: - dst[i].f = (float) src[i].i; + dst[didx].f = (float) src[sidx].i; break; case GLSL_TYPE_BOOL: - dst[i].f = src[i].i ? 1.0f : 0.0f; + dst[didx].f = src[sidx].i ? 1.0f : 0.0f; + break; + case GLSL_TYPE_DOUBLE: + dst[didx].f = *(double *)&src[sidx].f; + break; + default: + assert(!"Should not get here."); + break; + } + break; + case GLSL_TYPE_DOUBLE: + switch (uni->type->base_type) { + case GLSL_TYPE_UINT: + *(double *)&dst[didx].f = (double) src[sidx].u; + break; + case GLSL_TYPE_INT: + case GLSL_TYPE_SAMPLER: + case GLSL_TYPE_IMAGE: + *(double *)&dst[didx].f = (double) src[sidx].i; + break; + case GLSL_TYPE_BOOL: + *(double *)&dst[didx].f = src[sidx].i ? 1.0f : 0.0f; + break; + case GLSL_TYPE_FLOAT: + *(double *)&dst[didx].f = (double) src[sidx].f; break; default: assert(!"Should not get here."); break; } break; - case GLSL_TYPE_INT: case GLSL_TYPE_UINT: switch (uni->type->base_type) { @@ -414,10 +432,13 @@ _mesa_get_uniform(struct gl_context *ctx, GLuint program, GLint location, * a floating-point value is rounded to the * nearest integer..." */ - dst[i].i = IROUND(src[i].f); + dst[didx].i = IROUND(src[sidx].f); break; case GLSL_TYPE_BOOL: - dst[i].i = src[i].i ? 1 : 0; + dst[didx].i = src[sidx].i ? 1 : 0; + break; + case GLSL_TYPE_DOUBLE: + dst[didx].i = *(double *)&src[sidx].f; break; default: assert(!"Should not get here."); |