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move/improve comments, clean up code in a few places

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This commit is contained in:
Brian Paul 2006-10-21 23:21:35 +00:00
parent ed324db249
commit 919cd2c3ba
1 changed files with 16 additions and 21 deletions
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37
src/mesa/swrast/s_atifragshader.c
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@ -242,17 +242,6 @@ finish_pass(struct atifs_machine *machine)
}
}
/**
* Execute the given fragment shader
* NOTE: we do everything in single-precision floating point; we don't
* currently observe the single/half/fixed-precision qualifiers.
* \param ctx - rendering context
* \param program - the fragment program to execute
* \param machine - machine state (register file)
* \param maxInst - max number of instructions to execute
* \return GL_TRUE if program completed or GL_FALSE if program executed KIL.
*/
struct ati_fs_opcode_st ati_fs_opcodes[] = {
{GL_ADD_ATI, 2},
{GL_SUB_ATI, 2},
@ -316,11 +305,21 @@ do { \
COPY_4V(src[optype][i], x); \
} while (0)
static GLboolean
execute_shader(GLcontext * ctx,
const struct ati_fragment_shader *shader, GLuint maxInst,
/**
* Execute the given fragment shader.
* NOTE: we do everything in single-precision floating point
* \param ctx - rendering context
* \param shader - the shader to execute
* \param machine - virtual machine state
* \param span - the SWspan we're operating on
* \param column - which pixel [i] we're operating on in the span
*/
static void
execute_shader(GLcontext *ctx, const struct ati_fragment_shader *shader,
struct atifs_machine *machine, const SWspan *span,
GLuint column)
GLuint column)
{
GLuint pc;
struct atifs_instruction *inst;
@ -554,7 +553,6 @@ execute_shader(GLcontext * ctx,
}
}
}
return GL_TRUE;
}
@ -598,11 +596,8 @@ _swrast_exec_fragment_shader(GLcontext * ctx, SWspan *span)
for (i = 0; i < span->end; i++) {
if (span->array->mask[i]) {
init_machine(ctx, &machine, shader, span, i);
/* can't really happen... */
if (!execute_shader(ctx, shader, ~0, &machine, span, i)) {
span->array->mask[i] = GL_FALSE;
span->writeAll = GL_FALSE;
}
execute_shader(ctx, shader, &machine, span, i);
/* store result color */
{