#include "pipe/p_context.h"
#include "pipe/p_defines.h"
+#include "pipe/p_format.h"
+#include "util/u_format.h"
#include "util/u_math.h"
#include "util/u_memory.h"
static void
emit_immediate(struct i915_context *i915)
{
- /* remove unwatned bits and S7 */
+ /* remove unwanted bits and S7 */
unsigned dirty = (1 << I915_IMMEDIATE_S0 | 1 << I915_IMMEDIATE_S1 |
1 << I915_IMMEDIATE_S2 | 1 << I915_IMMEDIATE_S3 |
1 << I915_IMMEDIATE_S3 | 1 << I915_IMMEDIATE_S4 |
}
for (i = 1; i < I915_MAX_IMMEDIATE; i++) {
- if (dirty & (1 << i))
- OUT_BATCH(i915->current.immediate[i]);
+ if (dirty & (1 << i)) {
+ /* Fixup blend function for A8 dst buffers.
+ * When we blend to an A8 buffer, the GPU thinks it's a G8 buffer,
+ * and therefore we need to use the color factor for alphas. */
+ if ((i == I915_IMMEDIATE_S6) &&
+ (i915->current.target_fixup_format == PIPE_FORMAT_A8_UNORM)) {
+ uint32_t imm = i915->current.immediate[i];
+ uint32_t srcRGB = (imm >> S6_CBUF_SRC_BLEND_FACT_SHIFT) & BLENDFACT_MASK;
+ if (srcRGB == BLENDFACT_DST_ALPHA)
+ srcRGB = BLENDFACT_DST_COLR;
+ else if (srcRGB == BLENDFACT_INV_DST_ALPHA)
+ srcRGB = BLENDFACT_INV_DST_COLR;
+ imm &= ~SRC_BLND_FACT(BLENDFACT_MASK);
+ imm |= SRC_BLND_FACT(srcRGB);
+ OUT_BATCH(imm);
+ } else {
+ OUT_BATCH(i915->current.immediate[i]);
+ }
+ }
}
}
static void
validate_program(struct i915_context *i915, unsigned *batch_space)
{
- *batch_space = i915->fs->program_len;
+ uint additional_size = i915->current.target_fixup_format ? 1 : 0;
+
+ /* we need more batch space if we want to emulate rgba framebuffers */
+ *batch_space = i915->fs->decl_len + i915->fs->program_len + 3 * additional_size;
}
static void
emit_program(struct i915_context *i915)
{
- uint i;
- /* we should always have, at least, a pass-through program */
- assert(i915->fs->program_len > 0);
- for (i = 0; i < i915->fs->program_len; i++) {
- OUT_BATCH(i915->fs->program[i]);
- }
+ uint need_target_fixup = i915->current.target_fixup_format ? 1 : 0;
+ uint i;
+
+ /* we should always have, at least, a pass-through program */
+ assert(i915->fs->program_len > 0);
+
+ /* output the declarations */
+ {
+ /* first word has the size, we have to adjust that */
+ uint size = (i915->fs->decl[0]);
+ size += need_target_fixup * 3;
+ OUT_BATCH(size);
+ }
+
+ for (i = 1 ; i < i915->fs->decl_len; i++)
+ OUT_BATCH(i915->fs->decl[i]);
+
+ /* output the program */
+ for (i = 0 ; i < i915->fs->program_len; i++)
+ OUT_BATCH(i915->fs->program[i]);
+
+ /* we emit an additional mov with swizzle to fake RGBA framebuffers */
+ if (need_target_fixup) {
+ /* mov out_color, out_color.zyxw */
+ OUT_BATCH(A0_MOV |
+ (REG_TYPE_OC << A0_DEST_TYPE_SHIFT) |
+ A0_DEST_CHANNEL_ALL |
+ (REG_TYPE_OC << A0_SRC0_TYPE_SHIFT) |
+ (T_DIFFUSE << A0_SRC0_NR_SHIFT));
+ OUT_BATCH(i915->current.fixup_swizzle);
+ OUT_BATCH(0);
+ }
}
static void
else
*batch_space = 0;
+#if 0
+static int counter_total = 0;
+#define VALIDATE_ATOM(atom, hw_dirty) \
+ if (i915->hardware_dirty & hw_dirty) { \
+ static int counter_##atom = 0;\
+ validate_##atom(i915, &tmp); \
+ *batch_space += tmp;\
+ counter_##atom += tmp;\
+ counter_total += tmp;\
+ printf("%s: \t%d/%d \t%2.2f\n",#atom, counter_##atom, counter_total, counter_##atom*100.f/counter_total);}
+#else
#define VALIDATE_ATOM(atom, hw_dirty) \
if (i915->hardware_dirty & hw_dirty) { \
validate_##atom(i915, &tmp); \
*batch_space += tmp; }
+#endif
VALIDATE_ATOM(flush, I915_HW_FLUSH);
VALIDATE_ATOM(immediate, I915_HW_IMMEDIATE);
VALIDATE_ATOM(dynamic, I915_HW_DYNAMIC);