static struct pipe_sampler_view *etna_pipe_create_sampler_view(struct pipe_context *pipe,
struct pipe_resource *texture,
const struct pipe_sampler_view *templat)
{
struct etna_pipe_context *priv = etna_pipe_context(pipe);
struct etna_sampler_view *sv = CALLOC_STRUCT(etna_sampler_view);
sv->base = *templat;
sv->base.context = pipe;
sv->base.texture = 0;
pipe_resource_reference(&sv->base.texture, texture);
sv->base.texture = texture;
assert(sv->base.texture);
struct compiled_sampler_view *cs = CALLOC_STRUCT(compiled_sampler_view);
struct etna_resource *res = etna_resource(sv->base.texture);
assert(res != NULL);
cs->TE_SAMPLER_CONFIG0 =
VIVS_TE_SAMPLER_CONFIG0_TYPE(translate_texture_target(res->base.target, false)) |
VIVS_TE_SAMPLER_CONFIG0_FORMAT(translate_texture_format(sv->base.format, false));
/* merged with sampler state */
cs->TE_SAMPLER_CONFIG0_MASK = 0xffffffff;
cs->TE_SAMPLER_CONFIG1 =
VIVS_TE_SAMPLER_CONFIG1_SWIZZLE_R(templat->swizzle_r) |
VIVS_TE_SAMPLER_CONFIG1_SWIZZLE_G(templat->swizzle_g) |
VIVS_TE_SAMPLER_CONFIG1_SWIZZLE_B(templat->swizzle_b) |
VIVS_TE_SAMPLER_CONFIG1_SWIZZLE_A(templat->swizzle_a) |
VIVS_TE_SAMPLER_CONFIG1_HALIGN(res->halign);
cs->TE_SAMPLER_SIZE =
VIVS_TE_SAMPLER_SIZE_WIDTH(res->base.width0)|
VIVS_TE_SAMPLER_SIZE_HEIGHT(res->base.height0);
cs->TE_SAMPLER_LOG_SIZE =
VIVS_TE_SAMPLER_LOG_SIZE_WIDTH(etna_log2_fixp55(res->base.width0)) |
VIVS_TE_SAMPLER_LOG_SIZE_HEIGHT(etna_log2_fixp55(res->base.height0));
/* Set up levels-of-detail */
for(int lod=0; lod<=res->base.last_level; ++lod)
{
cs->TE_SAMPLER_LOD_ADDR[lod] = etna_bo_gpu_address(res->bo) + res->levels[lod].offset;
}
cs->min_lod = sv->base.u.tex.first_level << 5;
cs->max_lod = MIN2(sv->base.u.tex.last_level, res->base.last_level) << 5;
/* Workaround for npot textures -- it appears that only CLAMP_TO_EDGE is supported when the
* appropriate capability is not set. */
if(!priv->specs.npot_tex_any_wrap &&
(!util_is_power_of_two(res->base.width0) || !util_is_power_of_two(res->base.height0)))
{
cs->TE_SAMPLER_CONFIG0_MASK = ~(VIVS_TE_SAMPLER_CONFIG0_UWRAP__MASK |
VIVS_TE_SAMPLER_CONFIG0_VWRAP__MASK);
cs->TE_SAMPLER_CONFIG0 |= VIVS_TE_SAMPLER_CONFIG0_UWRAP(TEXTURE_WRAPMODE_CLAMP_TO_EDGE) |
VIVS_TE_SAMPLER_CONFIG0_VWRAP(TEXTURE_WRAPMODE_CLAMP_TO_EDGE);
}
sv->internal = cs;
pipe_reference_init(&sv->base.reference, 1);
return &sv->base;
}
static struct pipe_sampler_view *etna_pipe_create_sampler_view(struct pipe_context *pipe,
struct pipe_resource *texture,
const struct pipe_sampler_view *templat)
{
//struct etna_pipe_context *priv = etna_pipe_context(pipe);
struct etna_sampler_view *sv = CALLOC_STRUCT(etna_sampler_view);
sv->base = *templat;
sv->base.context = pipe;
sv->base.texture = 0;
pipe_resource_reference(&sv->base.texture, texture);
sv->base.texture = texture;
assert(sv->base.texture);
struct compiled_sampler_view *cs = CALLOC_STRUCT(compiled_sampler_view);
struct etna_resource *res = etna_resource(sv->base.texture);
assert(res != NULL);
cs->TE_SAMPLER_CONFIG0 =
VIVS_TE_SAMPLER_CONFIG0_TYPE(translate_texture_target(res->base.target, false)) |
VIVS_TE_SAMPLER_CONFIG0_FORMAT(translate_texture_format(sv->base.format, false));
/* merged with sampler state */
cs->TE_SAMPLER_CONFIG1 =
VIVS_TE_SAMPLER_CONFIG1_SWIZZLE_R(templat->swizzle_r) |
VIVS_TE_SAMPLER_CONFIG1_SWIZZLE_G(templat->swizzle_g) |
VIVS_TE_SAMPLER_CONFIG1_SWIZZLE_B(templat->swizzle_b) |
VIVS_TE_SAMPLER_CONFIG1_SWIZZLE_A(templat->swizzle_a) |
VIVS_TE_SAMPLER_CONFIG1_HALIGN(res->halign);
cs->TE_SAMPLER_SIZE =
VIVS_TE_SAMPLER_SIZE_WIDTH(res->base.width0)|
VIVS_TE_SAMPLER_SIZE_HEIGHT(res->base.height0);
cs->TE_SAMPLER_LOG_SIZE =
VIVS_TE_SAMPLER_LOG_SIZE_WIDTH(log2_fixp55(res->base.width0)) |
VIVS_TE_SAMPLER_LOG_SIZE_HEIGHT(log2_fixp55(res->base.height0));
/* XXX in principle we only have to define lods sv->first_level .. sv->last_level */
for(int lod=0; lod<=res->base.last_level; ++lod)
{
cs->TE_SAMPLER_LOD_ADDR[lod] = res->levels[lod].address;
}
cs->min_lod = sv->base.u.tex.first_level << 5;
cs->max_lod = MIN2(sv->base.u.tex.last_level, res->base.last_level) << 5;
sv->internal = cs;
pipe_reference_init(&sv->base.reference, 1);
return &sv->base;
}
static boolean
etna_screen_is_format_supported(struct pipe_screen *pscreen,
enum pipe_format format,
enum pipe_texture_target target,
unsigned sample_count, unsigned usage)
{
struct etna_screen *screen = etna_screen(pscreen);
unsigned allowed = 0;
if (target != PIPE_BUFFER &&
target != PIPE_TEXTURE_1D &&
target != PIPE_TEXTURE_2D &&
target != PIPE_TEXTURE_3D &&
target != PIPE_TEXTURE_CUBE &&
target != PIPE_TEXTURE_RECT)
return FALSE;
if (usage & PIPE_BIND_RENDER_TARGET) {
/* If render target, must be RS-supported format that is not rb swapped.
* Exposing rb swapped (or other swizzled) formats for rendering would
* involve swizzing in the pixel shader.
*/
if (translate_rs_format(format) != ETNA_NO_MATCH && !translate_rs_format_rb_swap(format)) {
/* Validate MSAA; number of samples must be allowed, and render target
* must have MSAA'able format. */
if (sample_count > 1) {
if (translate_samples_to_xyscale(sample_count, NULL, NULL, NULL) &&
translate_msaa_format(format) != ETNA_NO_MATCH) {
allowed |= PIPE_BIND_RENDER_TARGET;
}
} else {
allowed |= PIPE_BIND_RENDER_TARGET;
}
}
}
if (usage & PIPE_BIND_DEPTH_STENCIL) {
if (translate_depth_format(format) != ETNA_NO_MATCH)
allowed |= PIPE_BIND_DEPTH_STENCIL;
}
if (usage & PIPE_BIND_SAMPLER_VIEW) {
uint32_t fmt = translate_texture_format(format);
if (!gpu_supports_texure_format(screen, fmt))
fmt = ETNA_NO_MATCH;
if (sample_count < 2 && fmt != ETNA_NO_MATCH)
allowed |= PIPE_BIND_SAMPLER_VIEW;
}
if (usage & PIPE_BIND_VERTEX_BUFFER) {
if (translate_vertex_format_type(format) != ETNA_NO_MATCH)
allowed |= PIPE_BIND_VERTEX_BUFFER;
}
if (usage & PIPE_BIND_INDEX_BUFFER) {
/* must be supported index format */
if (format == PIPE_FORMAT_I8_UINT || format == PIPE_FORMAT_I16_UINT ||
(format == PIPE_FORMAT_I32_UINT &&
VIV_FEATURE(screen, chipFeatures, 32_BIT_INDICES))) {
allowed |= PIPE_BIND_INDEX_BUFFER;
}
}
/* Always allowed */
allowed |=
usage & (PIPE_BIND_DISPLAY_TARGET | PIPE_BIND_SCANOUT | PIPE_BIND_SHARED);
if (usage != allowed) {
DBG("not supported: format=%s, target=%d, sample_count=%d, "
"usage=%x, allowed=%x",
util_format_name(format), target, sample_count, usage, allowed);
}
return usage == allowed;
}
/* Recalculate all state from scratch. Perhaps not the most
* efficient, but this has gotten complex enough that we need
* something which is understandable and reliable.
*/
static GLboolean
i830_update_tex_unit(struct intel_context *intel, GLuint unit, GLuint ss3)
{
GLcontext *ctx = &intel->ctx;
struct i830_context *i830 = i830_context(ctx);
struct gl_texture_object *tObj = ctx->Texture.Unit[unit]._Current;
struct intel_texture_object *intelObj = intel_texture_object(tObj);
struct gl_texture_image *firstImage;
GLuint *state = i830->state.Tex[unit], format, pitch;
memset(state, 0, sizeof(state));
/*We need to refcount these. */
if (i830->state.tex_buffer[unit] != NULL) {
dri_bo_unreference(i830->state.tex_buffer[unit]);
i830->state.tex_buffer[unit] = NULL;
}
if (!intelObj->imageOverride && !intel_finalize_mipmap_tree(intel, unit))
return GL_FALSE;
/* Get first image here, since intelObj->firstLevel will get set in
* the intel_finalize_mipmap_tree() call above.
*/
firstImage = tObj->Image[0][intelObj->firstLevel];
if (intelObj->imageOverride) {
i830->state.tex_buffer[unit] = NULL;
i830->state.tex_offset[unit] = intelObj->textureOffset;
switch (intelObj->depthOverride) {
case 32:
format = MAPSURF_32BIT | MT_32BIT_ARGB8888;
break;
case 24:
default:
format = MAPSURF_32BIT | MT_32BIT_XRGB8888;
break;
case 16:
format = MAPSURF_16BIT | MT_16BIT_RGB565;
break;
}
pitch = intelObj->pitchOverride;
} else {
dri_bo_reference(intelObj->mt->region->buffer);
i830->state.tex_buffer[unit] = intelObj->mt->region->buffer;
i830->state.tex_offset[unit] = intel_miptree_image_offset(intelObj->mt,
0, intelObj->
firstLevel);
format = translate_texture_format(firstImage->TexFormat->MesaFormat);
pitch = intelObj->mt->pitch * intelObj->mt->cpp;
}
state[I830_TEXREG_TM0LI] = (_3DSTATE_LOAD_STATE_IMMEDIATE_2 |
(LOAD_TEXTURE_MAP0 << unit) | 4);
/* state[I830_TEXREG_TM0S0] = (TM0S0_USE_FENCE | */
/* t->intel.TextureOffset); */
state[I830_TEXREG_TM0S1] =
(((firstImage->Height - 1) << TM0S1_HEIGHT_SHIFT) |
((firstImage->Width - 1) << TM0S1_WIDTH_SHIFT) | format);
state[I830_TEXREG_TM0S2] =
((((pitch / 4) - 1) << TM0S2_PITCH_SHIFT) | TM0S2_CUBE_FACE_ENA_MASK);
{
if (tObj->Target == GL_TEXTURE_CUBE_MAP)
state[I830_TEXREG_CUBE] = (_3DSTATE_MAP_CUBE | MAP_UNIT(unit) |
CUBE_NEGX_ENABLE |
CUBE_POSX_ENABLE |
CUBE_NEGY_ENABLE |
CUBE_POSY_ENABLE |
CUBE_NEGZ_ENABLE | CUBE_POSZ_ENABLE);
else
state[I830_TEXREG_CUBE] = (_3DSTATE_MAP_CUBE | MAP_UNIT(unit));
}
{
GLuint minFilt, mipFilt, magFilt;
switch (tObj->MinFilter) {
case GL_NEAREST:
minFilt = FILTER_NEAREST;
mipFilt = MIPFILTER_NONE;
break;
case GL_LINEAR:
minFilt = FILTER_LINEAR;
mipFilt = MIPFILTER_NONE;
break;
case GL_NEAREST_MIPMAP_NEAREST:
minFilt = FILTER_NEAREST;
mipFilt = MIPFILTER_NEAREST;
break;
case GL_LINEAR_MIPMAP_NEAREST:
minFilt = FILTER_LINEAR;
mipFilt = MIPFILTER_NEAREST;
break;
case GL_NEAREST_MIPMAP_LINEAR:
minFilt = FILTER_NEAREST;
mipFilt = MIPFILTER_LINEAR;
break;
case GL_LINEAR_MIPMAP_LINEAR:
minFilt = FILTER_LINEAR;
mipFilt = MIPFILTER_LINEAR;
break;
default:
return GL_FALSE;
}
if (tObj->MaxAnisotropy > 1.0) {
minFilt = FILTER_ANISOTROPIC;
magFilt = FILTER_ANISOTROPIC;
}
else {
switch (tObj->MagFilter) {
case GL_NEAREST:
magFilt = FILTER_NEAREST;
break;
case GL_LINEAR:
magFilt = FILTER_LINEAR;
break;
default:
return GL_FALSE;
}
}
state[I830_TEXREG_TM0S3] = i830->lodbias_tm0s3[unit];
#if 0
/* YUV conversion:
*/
if (firstImage->TexFormat->MesaFormat == MESA_FORMAT_YCBCR ||
firstImage->TexFormat->MesaFormat == MESA_FORMAT_YCBCR_REV)
state[I830_TEXREG_TM0S3] |= SS2_COLORSPACE_CONVERSION;
#endif
state[I830_TEXREG_TM0S3] |= ((intelObj->lastLevel -
intelObj->firstLevel) *
4) << TM0S3_MIN_MIP_SHIFT;
state[I830_TEXREG_TM0S3] |= ((minFilt << TM0S3_MIN_FILTER_SHIFT) |
(mipFilt << TM0S3_MIP_FILTER_SHIFT) |
(magFilt << TM0S3_MAG_FILTER_SHIFT));
}
{
GLenum ws = tObj->WrapS;
GLenum wt = tObj->WrapT;
/* 3D textures not available on i830
*/
if (tObj->Target == GL_TEXTURE_3D)
return GL_FALSE;
state[I830_TEXREG_MCS] = (_3DSTATE_MAP_COORD_SET_CMD |
MAP_UNIT(unit) |
ENABLE_TEXCOORD_PARAMS |
ss3 |
ENABLE_ADDR_V_CNTL |
TEXCOORD_ADDR_V_MODE(translate_wrap_mode(wt))
| ENABLE_ADDR_U_CNTL |
TEXCOORD_ADDR_U_MODE(translate_wrap_mode
(ws)));
}
state[I830_TEXREG_TM0S4] = INTEL_PACKCOLOR8888(tObj->_BorderChan[0],
tObj->_BorderChan[1],
tObj->_BorderChan[2],
tObj->_BorderChan[3]);
I830_ACTIVESTATE(i830, I830_UPLOAD_TEX(unit), GL_TRUE);
/* memcmp was already disabled, but definitely won't work as the
* region might now change and that wouldn't be detected:
*/
I830_STATECHANGE(i830, I830_UPLOAD_TEX(unit));
return GL_TRUE;
}
static struct pipe_sampler_view *
etna_create_sampler_view(struct pipe_context *pctx, struct pipe_resource *prsc,
const struct pipe_sampler_view *so)
{
struct etna_sampler_view *sv = CALLOC_STRUCT(etna_sampler_view);
struct etna_resource *res = etna_resource(prsc);
struct etna_context *ctx = etna_context(pctx);
const uint32_t format = translate_texture_format(so->format);
const bool ext = !!(format & EXT_FORMAT);
const uint32_t swiz = get_texture_swiz(so->format, so->swizzle_r,
so->swizzle_g, so->swizzle_b,
so->swizzle_a);
if (!sv)
return NULL;
if (!etna_resource_sampler_compatible(res)) {
/* The original resource is not compatible with the sampler.
* Allocate an appropriately tiled texture. */
if (!res->texture) {
struct pipe_resource templat = *prsc;
templat.bind &= ~(PIPE_BIND_DEPTH_STENCIL | PIPE_BIND_RENDER_TARGET |
PIPE_BIND_BLENDABLE);
res->texture =
etna_resource_alloc(pctx->screen, ETNA_LAYOUT_TILED,
DRM_FORMAT_MOD_LINEAR, &templat);
}
if (!res->texture) {
free(sv);
return NULL;
}
res = etna_resource(res->texture);
}
sv->base = *so;
pipe_reference_init(&sv->base.reference, 1);
sv->base.texture = NULL;
pipe_resource_reference(&sv->base.texture, prsc);
sv->base.context = pctx;
/* merged with sampler state */
sv->TE_SAMPLER_CONFIG0 = COND(!ext, VIVS_TE_SAMPLER_CONFIG0_FORMAT(format));
sv->TE_SAMPLER_CONFIG0_MASK = 0xffffffff;
switch (sv->base.target) {
case PIPE_TEXTURE_1D:
/* For 1D textures, we will have a height of 1, so we can use 2D
* but set T wrap to repeat */
sv->TE_SAMPLER_CONFIG0_MASK = ~VIVS_TE_SAMPLER_CONFIG0_VWRAP__MASK;
sv->TE_SAMPLER_CONFIG0 |= VIVS_TE_SAMPLER_CONFIG0_VWRAP(TEXTURE_WRAPMODE_REPEAT);
/* fallthrough */
case PIPE_TEXTURE_2D:
case PIPE_TEXTURE_RECT:
sv->TE_SAMPLER_CONFIG0 |= VIVS_TE_SAMPLER_CONFIG0_TYPE(TEXTURE_TYPE_2D);
break;
case PIPE_TEXTURE_CUBE:
sv->TE_SAMPLER_CONFIG0 |= VIVS_TE_SAMPLER_CONFIG0_TYPE(TEXTURE_TYPE_CUBE_MAP);
break;
default:
BUG("Unhandled texture target");
free(sv);
return NULL;
}
sv->TE_SAMPLER_CONFIG1 = COND(ext, VIVS_TE_SAMPLER_CONFIG1_FORMAT_EXT(format)) |
VIVS_TE_SAMPLER_CONFIG1_HALIGN(res->halign) | swiz;
sv->TE_SAMPLER_SIZE = VIVS_TE_SAMPLER_SIZE_WIDTH(res->base.width0) |
VIVS_TE_SAMPLER_SIZE_HEIGHT(res->base.height0);
sv->TE_SAMPLER_LOG_SIZE =
VIVS_TE_SAMPLER_LOG_SIZE_WIDTH(etna_log2_fixp55(res->base.width0)) |
VIVS_TE_SAMPLER_LOG_SIZE_HEIGHT(etna_log2_fixp55(res->base.height0));
/* Set up levels-of-detail */
for (int lod = 0; lod <= res->base.last_level; ++lod) {
sv->TE_SAMPLER_LOD_ADDR[lod].bo = res->bo;
sv->TE_SAMPLER_LOD_ADDR[lod].offset = res->levels[lod].offset;
sv->TE_SAMPLER_LOD_ADDR[lod].flags = ETNA_RELOC_READ;
}
sv->min_lod = sv->base.u.tex.first_level << 5;
sv->max_lod = MIN2(sv->base.u.tex.last_level, res->base.last_level) << 5;
/* Workaround for npot textures -- it appears that only CLAMP_TO_EDGE is
* supported when the appropriate capability is not set. */
if (!ctx->specs.npot_tex_any_wrap &&
(!util_is_power_of_two(res->base.width0) || !util_is_power_of_two(res->base.height0))) {
sv->TE_SAMPLER_CONFIG0_MASK = ~(VIVS_TE_SAMPLER_CONFIG0_UWRAP__MASK |
VIVS_TE_SAMPLER_CONFIG0_VWRAP__MASK);
sv->TE_SAMPLER_CONFIG0 |=
VIVS_TE_SAMPLER_CONFIG0_UWRAP(TEXTURE_WRAPMODE_CLAMP_TO_EDGE) |
VIVS_TE_SAMPLER_CONFIG0_VWRAP(TEXTURE_WRAPMODE_CLAMP_TO_EDGE);
}
return &sv->base;
}
static boolean etna_screen_is_format_supported( struct pipe_screen *screen,
enum pipe_format format,
enum pipe_texture_target target,
unsigned sample_count,
unsigned usage)
{
struct etna_screen *priv = etna_screen(screen);
unsigned allowed = 0;
if (target >= PIPE_MAX_TEXTURE_TYPES)
{
return FALSE;
}
if (usage & PIPE_BIND_RENDER_TARGET)
{
/* if render target, must be RS-supported format */
if(translate_rt_format(format, true) != ETNA_NO_MATCH)
{
/* Validate MSAA; number of samples must be allowed, and render target must have
* MSAA'able format.
*/
if(sample_count > 1)
{
if(translate_samples_to_xyscale(sample_count, NULL, NULL, NULL) &&
translate_msaa_format(format, true) != ETNA_NO_MATCH)
{
allowed |= PIPE_BIND_RENDER_TARGET;
}
} else {
allowed |= PIPE_BIND_RENDER_TARGET;
}
}
}
if (usage & PIPE_BIND_DEPTH_STENCIL)
{
/* must be supported depth format */
if(translate_depth_format(format, true) != ETNA_NO_MATCH)
{
allowed |= PIPE_BIND_DEPTH_STENCIL;
}
}
if (usage & PIPE_BIND_SAMPLER_VIEW)
{
/* must be supported texture format */
if(sample_count < 2 && translate_texture_format(format, true) != ETNA_NO_MATCH)
{
allowed |= PIPE_BIND_SAMPLER_VIEW;
}
}
if (usage & PIPE_BIND_VERTEX_BUFFER)
{
/* must be supported vertex format */
if(translate_vertex_format_type(format, true) == ETNA_NO_MATCH)
{
allowed |= PIPE_BIND_VERTEX_BUFFER;
}
}
if (usage & PIPE_BIND_INDEX_BUFFER)
{
/* must be supported index format */
if(format == PIPE_FORMAT_I8_UINT ||
format == PIPE_FORMAT_I16_UINT ||
(format == PIPE_FORMAT_I32_UINT && VIV_FEATURE(priv->dev, chipFeatures, 32_BIT_INDICES)))
{
allowed |= PIPE_BIND_INDEX_BUFFER;
}
}
/* Always allowed */
allowed |= usage & (PIPE_BIND_DISPLAY_TARGET | PIPE_BIND_SCANOUT |
PIPE_BIND_SHARED | PIPE_BIND_TRANSFER_READ | PIPE_BIND_TRANSFER_WRITE);
return usage == allowed;
}
/* Recalculate all state from scratch. Perhaps not the most
* efficient, but this has gotten complex enough that we need
* something which is understandable and reliable.
*/
static GLboolean
i915_update_tex_unit(struct intel_context *intel, GLuint unit, GLuint ss3)
{
struct gl_context *ctx = &intel->ctx;
struct i915_context *i915 = i915_context(ctx);
struct gl_texture_unit *tUnit = &ctx->Texture.Unit[unit];
struct gl_texture_object *tObj = tUnit->_Current;
struct intel_texture_object *intelObj = intel_texture_object(tObj);
struct gl_texture_image *firstImage;
GLuint *state = i915->state.Tex[unit], format, pitch;
GLint lodbias, aniso = 0;
GLubyte border[4];
GLfloat maxlod;
memset(state, 0, sizeof(state));
/*We need to refcount these. */
if (i915->state.tex_buffer[unit] != NULL) {
drm_intel_bo_unreference(i915->state.tex_buffer[unit]);
i915->state.tex_buffer[unit] = NULL;
}
if (!intel_finalize_mipmap_tree(intel, unit))
return GL_FALSE;
/* Get first image here, since intelObj->firstLevel will get set in
* the intel_finalize_mipmap_tree() call above.
*/
firstImage = tObj->Image[0][intelObj->firstLevel];
drm_intel_bo_reference(intelObj->mt->region->buffer);
i915->state.tex_buffer[unit] = intelObj->mt->region->buffer;
i915->state.tex_offset[unit] = 0; /* Always the origin of the miptree */
format = translate_texture_format(firstImage->TexFormat,
firstImage->InternalFormat,
tObj->DepthMode);
pitch = intelObj->mt->region->pitch * intelObj->mt->cpp;
state[I915_TEXREG_MS3] =
(((firstImage->Height - 1) << MS3_HEIGHT_SHIFT) |
((firstImage->Width - 1) << MS3_WIDTH_SHIFT) | format);
if (intelObj->mt->region->tiling != I915_TILING_NONE) {
state[I915_TEXREG_MS3] |= MS3_TILED_SURFACE;
if (intelObj->mt->region->tiling == I915_TILING_Y)
state[I915_TEXREG_MS3] |= MS3_TILE_WALK;
}
/* We get one field with fraction bits for the maximum addressable
* (lowest resolution) LOD. Use it to cover both MAX_LEVEL and
* MAX_LOD.
*/
maxlod = MIN2(tObj->MaxLod, tObj->_MaxLevel - tObj->BaseLevel);
state[I915_TEXREG_MS4] =
((((pitch / 4) - 1) << MS4_PITCH_SHIFT) |
MS4_CUBE_FACE_ENA_MASK |
(U_FIXED(CLAMP(maxlod, 0.0, 11.0), 2) << MS4_MAX_LOD_SHIFT) |
((firstImage->Depth - 1) << MS4_VOLUME_DEPTH_SHIFT));
{
GLuint minFilt, mipFilt, magFilt;
switch (tObj->MinFilter) {
case GL_NEAREST:
minFilt = FILTER_NEAREST;
mipFilt = MIPFILTER_NONE;
break;
case GL_LINEAR:
minFilt = FILTER_LINEAR;
mipFilt = MIPFILTER_NONE;
break;
case GL_NEAREST_MIPMAP_NEAREST:
minFilt = FILTER_NEAREST;
mipFilt = MIPFILTER_NEAREST;
break;
case GL_LINEAR_MIPMAP_NEAREST:
minFilt = FILTER_LINEAR;
mipFilt = MIPFILTER_NEAREST;
break;
case GL_NEAREST_MIPMAP_LINEAR:
minFilt = FILTER_NEAREST;
mipFilt = MIPFILTER_LINEAR;
break;
case GL_LINEAR_MIPMAP_LINEAR:
minFilt = FILTER_LINEAR;
mipFilt = MIPFILTER_LINEAR;
break;
default:
return GL_FALSE;
}
if (tObj->MaxAnisotropy > 1.0) {
minFilt = FILTER_ANISOTROPIC;
magFilt = FILTER_ANISOTROPIC;
if (tObj->MaxAnisotropy > 2.0)
aniso = SS2_MAX_ANISO_4;
else
aniso = SS2_MAX_ANISO_2;
}
else {
switch (tObj->MagFilter) {
case GL_NEAREST:
magFilt = FILTER_NEAREST;
break;
case GL_LINEAR:
magFilt = FILTER_LINEAR;
break;
default:
return GL_FALSE;
}
}
lodbias = (int) ((tUnit->LodBias + tObj->LodBias) * 16.0);
if (lodbias < -256)
lodbias = -256;
if (lodbias > 255)
lodbias = 255;
state[I915_TEXREG_SS2] = ((lodbias << SS2_LOD_BIAS_SHIFT) &
SS2_LOD_BIAS_MASK);
/* YUV conversion:
*/
if (firstImage->TexFormat == MESA_FORMAT_YCBCR ||
firstImage->TexFormat == MESA_FORMAT_YCBCR_REV)
state[I915_TEXREG_SS2] |= SS2_COLORSPACE_CONVERSION;
/* Shadow:
*/
if (tObj->CompareMode == GL_COMPARE_R_TO_TEXTURE_ARB &&
tObj->Target != GL_TEXTURE_3D) {
if (tObj->Target == GL_TEXTURE_1D)
return GL_FALSE;
state[I915_TEXREG_SS2] |=
(SS2_SHADOW_ENABLE |
intel_translate_shadow_compare_func(tObj->CompareFunc));
minFilt = FILTER_4X4_FLAT;
magFilt = FILTER_4X4_FLAT;
}
state[I915_TEXREG_SS2] |= ((minFilt << SS2_MIN_FILTER_SHIFT) |
(mipFilt << SS2_MIP_FILTER_SHIFT) |
(magFilt << SS2_MAG_FILTER_SHIFT) |
aniso);
}
{
GLenum ws = tObj->WrapS;
GLenum wt = tObj->WrapT;
GLenum wr = tObj->WrapR;
float minlod;
/* We program 1D textures as 2D textures, so the 2D texcoord could
* result in sampling border values if we don't set the T wrap to
* repeat.
*/
if (tObj->Target == GL_TEXTURE_1D)
wt = GL_REPEAT;
/* 3D textures don't seem to respect the border color.
* Fallback if there's ever a danger that they might refer to
* it.
*
* Effectively this means fallback on 3D clamp or
* clamp_to_border.
*/
if (tObj->Target == GL_TEXTURE_3D &&
(tObj->MinFilter != GL_NEAREST ||
tObj->MagFilter != GL_NEAREST) &&
(ws == GL_CLAMP ||
wt == GL_CLAMP ||
wr == GL_CLAMP ||
ws == GL_CLAMP_TO_BORDER ||
wt == GL_CLAMP_TO_BORDER || wr == GL_CLAMP_TO_BORDER))
return GL_FALSE;
/* Only support TEXCOORDMODE_CLAMP_EDGE and TEXCOORDMODE_CUBE (not
* used) when using cube map texture coordinates
*/
if (tObj->Target == GL_TEXTURE_CUBE_MAP_ARB &&
(((ws != GL_CLAMP) && (ws != GL_CLAMP_TO_EDGE)) ||
((wt != GL_CLAMP) && (wt != GL_CLAMP_TO_EDGE))))
return GL_FALSE;
state[I915_TEXREG_SS3] = ss3; /* SS3_NORMALIZED_COORDS */
state[I915_TEXREG_SS3] |=
((translate_wrap_mode(ws) << SS3_TCX_ADDR_MODE_SHIFT) |
(translate_wrap_mode(wt) << SS3_TCY_ADDR_MODE_SHIFT) |
(translate_wrap_mode(wr) << SS3_TCZ_ADDR_MODE_SHIFT));
minlod = MIN2(tObj->MinLod, tObj->_MaxLevel - tObj->BaseLevel);
state[I915_TEXREG_SS3] |= (unit << SS3_TEXTUREMAP_INDEX_SHIFT);
state[I915_TEXREG_SS3] |= (U_FIXED(CLAMP(minlod, 0.0, 11.0), 4) <<
SS3_MIN_LOD_SHIFT);
}
/* convert border color from float to ubyte */
CLAMPED_FLOAT_TO_UBYTE(border[0], tObj->BorderColor.f[0]);
CLAMPED_FLOAT_TO_UBYTE(border[1], tObj->BorderColor.f[1]);
CLAMPED_FLOAT_TO_UBYTE(border[2], tObj->BorderColor.f[2]);
CLAMPED_FLOAT_TO_UBYTE(border[3], tObj->BorderColor.f[3]);
if (firstImage->_BaseFormat == GL_DEPTH_COMPONENT) {
/* GL specs that border color for depth textures is taken from the
* R channel, while the hardware uses A. Spam R into all the channels
* for safety.
*/
state[I915_TEXREG_SS4] = PACK_COLOR_8888(border[0],
border[0],
border[0],
border[0]);
} else {
state[I915_TEXREG_SS4] = PACK_COLOR_8888(border[3],
border[0],
border[1],
border[2]);
}
I915_ACTIVESTATE(i915, I915_UPLOAD_TEX(unit), GL_TRUE);
/* memcmp was already disabled, but definitely won't work as the
* region might now change and that wouldn't be detected:
*/
I915_STATECHANGE(i915, I915_UPLOAD_TEX(unit));
#if 0
DBG(TEXTURE, "state[I915_TEXREG_SS2] = 0x%x\n", state[I915_TEXREG_SS2]);
DBG(TEXTURE, "state[I915_TEXREG_SS3] = 0x%x\n", state[I915_TEXREG_SS3]);
DBG(TEXTURE, "state[I915_TEXREG_SS4] = 0x%x\n", state[I915_TEXREG_SS4]);
DBG(TEXTURE, "state[I915_TEXREG_MS2] = 0x%x\n", state[I915_TEXREG_MS2]);
DBG(TEXTURE, "state[I915_TEXREG_MS3] = 0x%x\n", state[I915_TEXREG_MS3]);
DBG(TEXTURE, "state[I915_TEXREG_MS4] = 0x%x\n", state[I915_TEXREG_MS4]);
#endif
return GL_TRUE;
}
/* Recalculate all state from scratch. Perhaps not the most
* efficient, but this has gotten complex enough that we need
* something which is understandable and reliable.
*/
static bool
i830_update_tex_unit(struct intel_context *intel, GLuint unit, GLuint ss3)
{
struct gl_context *ctx = &intel->ctx;
struct i830_context *i830 = i830_context(ctx);
struct gl_texture_unit *tUnit = &ctx->Texture.Unit[unit];
struct gl_texture_object *tObj = tUnit->_Current;
struct intel_texture_object *intelObj = intel_texture_object(tObj);
struct gl_texture_image *firstImage;
struct gl_sampler_object *sampler = _mesa_get_samplerobj(ctx, unit);
GLuint *state = i830->state.Tex[unit], format, pitch;
GLint lodbias;
GLubyte border[4];
GLuint dst_x, dst_y;
memset(state, 0, sizeof(*state));
/*We need to refcount these. */
if (i830->state.tex_buffer[unit] != NULL) {
drm_intel_bo_unreference(i830->state.tex_buffer[unit]);
i830->state.tex_buffer[unit] = NULL;
}
if (!intel_finalize_mipmap_tree(intel, unit))
return false;
/* Get first image here, since intelObj->firstLevel will get set in
* the intel_finalize_mipmap_tree() call above.
*/
firstImage = tObj->Image[0][tObj->BaseLevel];
intel_miptree_get_image_offset(intelObj->mt, tObj->BaseLevel, 0,
&dst_x, &dst_y);
drm_intel_bo_reference(intelObj->mt->region->bo);
i830->state.tex_buffer[unit] = intelObj->mt->region->bo;
pitch = intelObj->mt->region->pitch;
/* XXX: This calculation is probably broken for tiled images with
* a non-page-aligned offset.
*/
i830->state.tex_offset[unit] = dst_x * intelObj->mt->cpp + dst_y * pitch;
format = translate_texture_format(firstImage->TexFormat);
state[I830_TEXREG_TM0LI] = (_3DSTATE_LOAD_STATE_IMMEDIATE_2 |
(LOAD_TEXTURE_MAP0 << unit) | 4);
state[I830_TEXREG_TM0S1] =
(((firstImage->Height - 1) << TM0S1_HEIGHT_SHIFT) |
((firstImage->Width - 1) << TM0S1_WIDTH_SHIFT) | format);
if (intelObj->mt->region->tiling != I915_TILING_NONE) {
state[I830_TEXREG_TM0S1] |= TM0S1_TILED_SURFACE;
if (intelObj->mt->region->tiling == I915_TILING_Y)
state[I830_TEXREG_TM0S1] |= TM0S1_TILE_WALK;
}
state[I830_TEXREG_TM0S2] =
((((pitch / 4) - 1) << TM0S2_PITCH_SHIFT) | TM0S2_CUBE_FACE_ENA_MASK);
{
if (tObj->Target == GL_TEXTURE_CUBE_MAP)
state[I830_TEXREG_CUBE] = (_3DSTATE_MAP_CUBE | MAP_UNIT(unit) |
CUBE_NEGX_ENABLE |
CUBE_POSX_ENABLE |
CUBE_NEGY_ENABLE |
CUBE_POSY_ENABLE |
CUBE_NEGZ_ENABLE | CUBE_POSZ_ENABLE);
else
state[I830_TEXREG_CUBE] = (_3DSTATE_MAP_CUBE | MAP_UNIT(unit));
}
{
GLuint minFilt, mipFilt, magFilt;
float maxlod;
uint32_t minlod_fixed, maxlod_fixed;
switch (sampler->MinFilter) {
case GL_NEAREST:
minFilt = FILTER_NEAREST;
mipFilt = MIPFILTER_NONE;
break;
case GL_LINEAR:
minFilt = FILTER_LINEAR;
mipFilt = MIPFILTER_NONE;
break;
case GL_NEAREST_MIPMAP_NEAREST:
minFilt = FILTER_NEAREST;
mipFilt = MIPFILTER_NEAREST;
break;
case GL_LINEAR_MIPMAP_NEAREST:
minFilt = FILTER_LINEAR;
mipFilt = MIPFILTER_NEAREST;
break;
case GL_NEAREST_MIPMAP_LINEAR:
minFilt = FILTER_NEAREST;
mipFilt = MIPFILTER_LINEAR;
break;
case GL_LINEAR_MIPMAP_LINEAR:
minFilt = FILTER_LINEAR;
mipFilt = MIPFILTER_LINEAR;
break;
default:
return false;
}
if (sampler->MaxAnisotropy > 1.0) {
minFilt = FILTER_ANISOTROPIC;
magFilt = FILTER_ANISOTROPIC;
}
else {
switch (sampler->MagFilter) {
case GL_NEAREST:
magFilt = FILTER_NEAREST;
break;
case GL_LINEAR:
magFilt = FILTER_LINEAR;
break;
default:
return false;
}
}
lodbias = (int) ((tUnit->LodBias + sampler->LodBias) * 16.0);
if (lodbias < -64)
lodbias = -64;
if (lodbias > 63)
lodbias = 63;
state[I830_TEXREG_TM0S3] = ((lodbias << TM0S3_LOD_BIAS_SHIFT) &
TM0S3_LOD_BIAS_MASK);
#if 0
/* YUV conversion:
*/
if (firstImage->TexFormat->MesaFormat == MESA_FORMAT_YCBCR ||
firstImage->TexFormat->MesaFormat == MESA_FORMAT_YCBCR_REV)
state[I830_TEXREG_TM0S3] |= SS2_COLORSPACE_CONVERSION;
#endif
/* We get one field with fraction bits for the maximum
* addressable (smallest resolution) LOD. Use it to cover both
* MAX_LEVEL and MAX_LOD.
*/
minlod_fixed = U_FIXED(CLAMP(sampler->MinLod, 0.0, 11), 4);
maxlod = MIN2(sampler->MaxLod, tObj->_MaxLevel - tObj->BaseLevel);
if (intel->intelScreen->deviceID == PCI_CHIP_I855_GM ||
intel->intelScreen->deviceID == PCI_CHIP_I865_G) {
maxlod_fixed = U_FIXED(CLAMP(maxlod, 0.0, 11.75), 2);
maxlod_fixed = MAX2(maxlod_fixed, (minlod_fixed + 3) >> 2);
state[I830_TEXREG_TM0S3] |= maxlod_fixed << TM0S3_MIN_MIP_SHIFT;
state[I830_TEXREG_TM0S2] |= TM0S2_LOD_PRECLAMP;
} else {
/* Recalculate all state from scratch. Perhaps not the most
* efficient, but this has gotten complex enough that we need
* something which is understandable and reliable.
*/
static bool
i915_update_tex_unit(struct intel_context *intel, GLuint unit, GLuint ss3)
{
struct gl_context *ctx = &intel->ctx;
struct i915_context *i915 = i915_context(ctx);
struct gl_texture_unit *tUnit = &ctx->Texture.Unit[unit];
struct gl_texture_object *tObj = tUnit->_Current;
struct intel_texture_object *intelObj = intel_texture_object(tObj);
struct gl_texture_image *firstImage;
struct gl_sampler_object *sampler = _mesa_get_samplerobj(ctx, unit);
GLuint *state = i915->state.Tex[unit], format, pitch;
GLint lodbias, aniso = 0;
GLubyte border[4];
GLfloat maxlod;
memset(state, 0, sizeof(state));
/*We need to refcount these. */
if (i915->state.tex_buffer[unit] != NULL) {
drm_intel_bo_unreference(i915->state.tex_buffer[unit]);
i915->state.tex_buffer[unit] = NULL;
}
if (!intel_finalize_mipmap_tree(intel, unit))
return false;
/* Get first image here, since intelObj->firstLevel will get set in
* the intel_finalize_mipmap_tree() call above.
*/
firstImage = tObj->Image[0][tObj->BaseLevel];
drm_intel_bo_reference(intelObj->mt->region->bo);
i915->state.tex_buffer[unit] = intelObj->mt->region->bo;
i915->state.tex_offset[unit] = intelObj->mt->offset;
format = translate_texture_format(firstImage->TexFormat,
tObj->DepthMode);
pitch = intelObj->mt->region->pitch * intelObj->mt->cpp;
state[I915_TEXREG_MS3] =
(((firstImage->Height - 1) << MS3_HEIGHT_SHIFT) |
((firstImage->Width - 1) << MS3_WIDTH_SHIFT) | format);
if (intelObj->mt->region->tiling != I915_TILING_NONE) {
state[I915_TEXREG_MS3] |= MS3_TILED_SURFACE;
if (intelObj->mt->region->tiling == I915_TILING_Y)
state[I915_TEXREG_MS3] |= MS3_TILE_WALK;
}
/* We get one field with fraction bits for the maximum addressable
* (lowest resolution) LOD. Use it to cover both MAX_LEVEL and
* MAX_LOD.
*/
maxlod = MIN2(sampler->MaxLod, tObj->_MaxLevel - tObj->BaseLevel);
state[I915_TEXREG_MS4] =
((((pitch / 4) - 1) << MS4_PITCH_SHIFT) |
MS4_CUBE_FACE_ENA_MASK |
(U_FIXED(CLAMP(maxlod, 0.0, 11.0), 2) << MS4_MAX_LOD_SHIFT) |
((firstImage->Depth - 1) << MS4_VOLUME_DEPTH_SHIFT));
{
GLuint minFilt, mipFilt, magFilt;
switch (sampler->MinFilter) {
case GL_NEAREST:
minFilt = FILTER_NEAREST;
mipFilt = MIPFILTER_NONE;
break;
case GL_LINEAR:
minFilt = FILTER_LINEAR;
mipFilt = MIPFILTER_NONE;
break;
case GL_NEAREST_MIPMAP_NEAREST:
minFilt = FILTER_NEAREST;
mipFilt = MIPFILTER_NEAREST;
break;
case GL_LINEAR_MIPMAP_NEAREST:
minFilt = FILTER_LINEAR;
mipFilt = MIPFILTER_NEAREST;
break;
case GL_NEAREST_MIPMAP_LINEAR:
minFilt = FILTER_NEAREST;
mipFilt = MIPFILTER_LINEAR;
break;
case GL_LINEAR_MIPMAP_LINEAR:
minFilt = FILTER_LINEAR;
mipFilt = MIPFILTER_LINEAR;
break;
default:
return false;
}
if (sampler->MaxAnisotropy > 1.0) {
minFilt = FILTER_ANISOTROPIC;
magFilt = FILTER_ANISOTROPIC;
if (sampler->MaxAnisotropy > 2.0)
aniso = SS2_MAX_ANISO_4;
else
aniso = SS2_MAX_ANISO_2;
}
else {
switch (sampler->MagFilter) {
case GL_NEAREST:
magFilt = FILTER_NEAREST;
break;
case GL_LINEAR:
magFilt = FILTER_LINEAR;
break;
default:
return false;
}
}
lodbias = (int) ((tUnit->LodBias + sampler->LodBias) * 16.0);
if (lodbias < -256)
lodbias = -256;
if (lodbias > 255)
lodbias = 255;
state[I915_TEXREG_SS2] = ((lodbias << SS2_LOD_BIAS_SHIFT) &
SS2_LOD_BIAS_MASK);
/* YUV conversion:
*/
if (firstImage->TexFormat == MESA_FORMAT_YCBCR ||
firstImage->TexFormat == MESA_FORMAT_YCBCR_REV)
state[I915_TEXREG_SS2] |= SS2_COLORSPACE_CONVERSION;
/* Shadow:
*/
if (sampler->CompareMode == GL_COMPARE_R_TO_TEXTURE_ARB &&
tObj->Target != GL_TEXTURE_3D) {
if (tObj->Target == GL_TEXTURE_1D)
return false;
state[I915_TEXREG_SS2] |=
(SS2_SHADOW_ENABLE |
intel_translate_shadow_compare_func(sampler->CompareFunc));
minFilt = FILTER_4X4_FLAT;
magFilt = FILTER_4X4_FLAT;
}
state[I915_TEXREG_SS2] |= ((minFilt << SS2_MIN_FILTER_SHIFT) |
(mipFilt << SS2_MIP_FILTER_SHIFT) |
(magFilt << SS2_MAG_FILTER_SHIFT) |
aniso);
}
{
GLenum ws = sampler->WrapS;
GLenum wt = sampler->WrapT;
GLenum wr = sampler->WrapR;
float minlod;
/* We program 1D textures as 2D textures, so the 2D texcoord could
* result in sampling border values if we don't set the T wrap to
* repeat.
*/
if (tObj->Target == GL_TEXTURE_1D)
wt = GL_REPEAT;
/* 3D textures don't seem to respect the border color.
* Fallback if there's ever a danger that they might refer to
* it.
*
* Effectively this means fallback on 3D clamp or
* clamp_to_border.
*/
if (tObj->Target == GL_TEXTURE_3D &&
(sampler->MinFilter != GL_NEAREST ||
sampler->MagFilter != GL_NEAREST) &&
(ws == GL_CLAMP ||
wt == GL_CLAMP ||
wr == GL_CLAMP ||
ws == GL_CLAMP_TO_BORDER ||
wt == GL_CLAMP_TO_BORDER || wr == GL_CLAMP_TO_BORDER))
return false;
/* Only support TEXCOORDMODE_CLAMP_EDGE and TEXCOORDMODE_CUBE (not
* used) when using cube map texture coordinates
*/
if (tObj->Target == GL_TEXTURE_CUBE_MAP_ARB &&
(((ws != GL_CLAMP) && (ws != GL_CLAMP_TO_EDGE)) ||
((wt != GL_CLAMP) && (wt != GL_CLAMP_TO_EDGE))))
return false;
/*
* According to 3DSTATE_MAP_STATE at page of 104 in Bspec
* Vol3d 3D Instructions:
* [DevGDG and DevAlv]: Must be a power of 2 for cube maps.
* [DevLPT, DevCST and DevBLB]: If not a power of 2, cube maps
* must have all faces enabled.
*
* But, as I tested on pineview(DevBLB derived), the rendering is
* bad(you will find the color isn't samplered right in some
* fragments). After checking, it seems that the texture layout is
* wrong: making the width and height align of 4(although this
* doesn't make much sense) will fix this issue and also broke some
* others. Well, Bspec mentioned nothing about the layout alignment
* and layout for NPOT cube map. I guess the Bspec just assume it's
* a POT cube map.
*
* Thus, I guess we need do this for other platforms as well.
*/
if (tObj->Target == GL_TEXTURE_CUBE_MAP_ARB &&
!is_power_of_two(firstImage->Height))
return false;
state[I915_TEXREG_SS3] = ss3; /* SS3_NORMALIZED_COORDS */
state[I915_TEXREG_SS3] |=
((translate_wrap_mode(ws) << SS3_TCX_ADDR_MODE_SHIFT) |
(translate_wrap_mode(wt) << SS3_TCY_ADDR_MODE_SHIFT) |
(translate_wrap_mode(wr) << SS3_TCZ_ADDR_MODE_SHIFT));
minlod = MIN2(sampler->MinLod, tObj->_MaxLevel - tObj->BaseLevel);
state[I915_TEXREG_SS3] |= (unit << SS3_TEXTUREMAP_INDEX_SHIFT);
state[I915_TEXREG_SS3] |= (U_FIXED(CLAMP(minlod, 0.0, 11.0), 4) <<
SS3_MIN_LOD_SHIFT);
}
/* convert border color from float to ubyte */
CLAMPED_FLOAT_TO_UBYTE(border[0], sampler->BorderColor.f[0]);
CLAMPED_FLOAT_TO_UBYTE(border[1], sampler->BorderColor.f[1]);
CLAMPED_FLOAT_TO_UBYTE(border[2], sampler->BorderColor.f[2]);
CLAMPED_FLOAT_TO_UBYTE(border[3], sampler->BorderColor.f[3]);
if (firstImage->_BaseFormat == GL_DEPTH_COMPONENT) {
/* GL specs that border color for depth textures is taken from the
* R channel, while the hardware uses A. Spam R into all the channels
* for safety.
*/
state[I915_TEXREG_SS4] = PACK_COLOR_8888(border[0],
border[0],
border[0],
border[0]);
} else {
state[I915_TEXREG_SS4] = PACK_COLOR_8888(border[3],
border[0],
border[1],
border[2]);
}
I915_ACTIVESTATE(i915, I915_UPLOAD_TEX(unit), true);
/* memcmp was already disabled, but definitely won't work as the
* region might now change and that wouldn't be detected:
*/
I915_STATECHANGE(i915, I915_UPLOAD_TEX(unit));
#if 0
DBG(TEXTURE, "state[I915_TEXREG_SS2] = 0x%x\n", state[I915_TEXREG_SS2]);
DBG(TEXTURE, "state[I915_TEXREG_SS3] = 0x%x\n", state[I915_TEXREG_SS3]);
DBG(TEXTURE, "state[I915_TEXREG_SS4] = 0x%x\n", state[I915_TEXREG_SS4]);
DBG(TEXTURE, "state[I915_TEXREG_MS2] = 0x%x\n", state[I915_TEXREG_MS2]);
DBG(TEXTURE, "state[I915_TEXREG_MS3] = 0x%x\n", state[I915_TEXREG_MS3]);
DBG(TEXTURE, "state[I915_TEXREG_MS4] = 0x%x\n", state[I915_TEXREG_MS4]);
#endif
return true;
}
/* Recalculate all state from scratch. Perhaps not the most
* efficient, but this has gotten complex enough that we need
* something which is understandable and reliable.
*/
static GLboolean
i830_update_tex_unit(struct intel_context *intel, GLuint unit, GLuint ss3)
{
GLcontext *ctx = &intel->ctx;
struct i830_context *i830 = i830_context(ctx);
struct gl_texture_unit *tUnit = &ctx->Texture.Unit[unit];
struct gl_texture_object *tObj = tUnit->_Current;
struct intel_texture_object *intelObj = intel_texture_object(tObj);
struct gl_texture_image *firstImage;
GLuint *state = i830->state.Tex[unit], format, pitch;
GLint lodbias;
GLubyte border[4];
GLuint dst_x, dst_y;
memset(state, 0, sizeof(state));
/*We need to refcount these. */
if (i830->state.tex_buffer[unit] != NULL) {
drm_intel_bo_unreference(i830->state.tex_buffer[unit]);
i830->state.tex_buffer[unit] = NULL;
}
if (!intel_finalize_mipmap_tree(intel, unit))
return GL_FALSE;
/* Get first image here, since intelObj->firstLevel will get set in
* the intel_finalize_mipmap_tree() call above.
*/
firstImage = tObj->Image[0][intelObj->firstLevel];
intel_miptree_get_image_offset(intelObj->mt, intelObj->firstLevel, 0, 0,
&dst_x, &dst_y);
drm_intel_bo_reference(intelObj->mt->region->buffer);
i830->state.tex_buffer[unit] = intelObj->mt->region->buffer;
pitch = intelObj->mt->region->pitch * intelObj->mt->cpp;
/* XXX: This calculation is probably broken for tiled images with
* a non-page-aligned offset.
*/
i830->state.tex_offset[unit] = dst_x * intelObj->mt->cpp + dst_y * pitch;
format = translate_texture_format(firstImage->TexFormat,
firstImage->InternalFormat);
state[I830_TEXREG_TM0LI] = (_3DSTATE_LOAD_STATE_IMMEDIATE_2 |
(LOAD_TEXTURE_MAP0 << unit) | 4);
state[I830_TEXREG_TM0S1] =
(((firstImage->Height - 1) << TM0S1_HEIGHT_SHIFT) |
((firstImage->Width - 1) << TM0S1_WIDTH_SHIFT) | format);
if (intelObj->mt->region->tiling != I915_TILING_NONE) {
state[I830_TEXREG_TM0S1] |= TM0S1_TILED_SURFACE;
if (intelObj->mt->region->tiling == I915_TILING_Y)
state[I830_TEXREG_TM0S1] |= TM0S1_TILE_WALK;
}
state[I830_TEXREG_TM0S2] =
((((pitch / 4) - 1) << TM0S2_PITCH_SHIFT) | TM0S2_CUBE_FACE_ENA_MASK);
{
if (tObj->Target == GL_TEXTURE_CUBE_MAP)
state[I830_TEXREG_CUBE] = (_3DSTATE_MAP_CUBE | MAP_UNIT(unit) |
CUBE_NEGX_ENABLE |
CUBE_POSX_ENABLE |
CUBE_NEGY_ENABLE |
CUBE_POSY_ENABLE |
CUBE_NEGZ_ENABLE | CUBE_POSZ_ENABLE);
else
state[I830_TEXREG_CUBE] = (_3DSTATE_MAP_CUBE | MAP_UNIT(unit));
}
{
GLuint minFilt, mipFilt, magFilt;
switch (tObj->MinFilter) {
case GL_NEAREST:
minFilt = FILTER_NEAREST;
mipFilt = MIPFILTER_NONE;
break;
case GL_LINEAR:
minFilt = FILTER_LINEAR;
mipFilt = MIPFILTER_NONE;
break;
case GL_NEAREST_MIPMAP_NEAREST:
minFilt = FILTER_NEAREST;
mipFilt = MIPFILTER_NEAREST;
break;
case GL_LINEAR_MIPMAP_NEAREST:
minFilt = FILTER_LINEAR;
mipFilt = MIPFILTER_NEAREST;
break;
case GL_NEAREST_MIPMAP_LINEAR:
minFilt = FILTER_NEAREST;
mipFilt = MIPFILTER_LINEAR;
break;
case GL_LINEAR_MIPMAP_LINEAR:
minFilt = FILTER_LINEAR;
mipFilt = MIPFILTER_LINEAR;
break;
default:
return GL_FALSE;
}
if (tObj->MaxAnisotropy > 1.0) {
minFilt = FILTER_ANISOTROPIC;
magFilt = FILTER_ANISOTROPIC;
}
else {
switch (tObj->MagFilter) {
case GL_NEAREST:
magFilt = FILTER_NEAREST;
break;
case GL_LINEAR:
magFilt = FILTER_LINEAR;
break;
default:
return GL_FALSE;
}
}
lodbias = (int) ((tUnit->LodBias + tObj->LodBias) * 16.0);
if (lodbias < -64)
lodbias = -64;
if (lodbias > 63)
lodbias = 63;
state[I830_TEXREG_TM0S3] = ((lodbias << TM0S3_LOD_BIAS_SHIFT) &
TM0S3_LOD_BIAS_MASK);
#if 0
/* YUV conversion:
*/
if (firstImage->TexFormat->MesaFormat == MESA_FORMAT_YCBCR ||
firstImage->TexFormat->MesaFormat == MESA_FORMAT_YCBCR_REV)
state[I830_TEXREG_TM0S3] |= SS2_COLORSPACE_CONVERSION;
#endif
state[I830_TEXREG_TM0S3] |= ((intelObj->lastLevel -
intelObj->firstLevel) *
4) << TM0S3_MIN_MIP_SHIFT;
state[I830_TEXREG_TM0S3] |= ((minFilt << TM0S3_MIN_FILTER_SHIFT) |
(mipFilt << TM0S3_MIP_FILTER_SHIFT) |
(magFilt << TM0S3_MAG_FILTER_SHIFT));
}
{
GLenum ws = tObj->WrapS;
GLenum wt = tObj->WrapT;
/* 3D textures not available on i830
*/
if (tObj->Target == GL_TEXTURE_3D)
return GL_FALSE;
state[I830_TEXREG_MCS] = (_3DSTATE_MAP_COORD_SET_CMD |
MAP_UNIT(unit) |
ENABLE_TEXCOORD_PARAMS |
ss3 |
ENABLE_ADDR_V_CNTL |
TEXCOORD_ADDR_V_MODE(translate_wrap_mode(wt))
| ENABLE_ADDR_U_CNTL |
TEXCOORD_ADDR_U_MODE(translate_wrap_mode
(ws)));
}
/* convert border color from float to ubyte */
CLAMPED_FLOAT_TO_UBYTE(border[0], tObj->BorderColor.f[0]);
CLAMPED_FLOAT_TO_UBYTE(border[1], tObj->BorderColor.f[1]);
CLAMPED_FLOAT_TO_UBYTE(border[2], tObj->BorderColor.f[2]);
CLAMPED_FLOAT_TO_UBYTE(border[3], tObj->BorderColor.f[3]);
state[I830_TEXREG_TM0S4] = PACK_COLOR_8888(border[3],
border[0],
border[1],
border[2]);
I830_ACTIVESTATE(i830, I830_UPLOAD_TEX(unit), GL_TRUE);
/* memcmp was already disabled, but definitely won't work as the
* region might now change and that wouldn't be detected:
*/
I830_STATECHANGE(i830, I830_UPLOAD_TEX(unit));
return GL_TRUE;
}
BOOL WINAPI
wglBindTexImageARB(HPBUFFERARB hPbuffer, int iBuffer)
{
HDC prevDrawable = stw_get_current_dc();
HDC prevReadable = stw_get_current_read_dc();
HDC dc;
struct stw_context *curctx = stw_current_context();
struct stw_framebuffer *fb;
GLenum texFormat, srcBuffer, target;
boolean retVal;
int pixelFormatSave;
/*
* Implementation notes:
* Ideally, we'd implement this function with the
* st_context_iface::teximage() function which replaces a specific
* texture image with a different resource (the pbuffer).
* The main problem however, is the pbuffer image is upside down relative
* to the texture image.
* Window system drawing surfaces (windows & pbuffers) are "top to bottom"
* while OpenGL texture images are "bottom to top". One possible solution
* to this is to invert rendering to pbuffers (as we do for renderbuffers)
* but that could lead to other issues (and would require extensive
* testing).
*
* The simple alternative is to use a copy-based approach which copies the
* pbuffer image into the texture via glCopyTex[Sub]Image. That's what
* we do here.
*/
if (!curctx) {
debug_printf("No rendering context in wglBindTexImageARB()\n");
SetLastError(ERROR_INVALID_OPERATION);
return FALSE;
}
fb = stw_framebuffer_from_HPBUFFERARB(hPbuffer);
if (!fb) {
debug_printf("Invalid pbuffer handle in wglBindTexImageARB()\n");
SetLastError(ERROR_INVALID_HANDLE);
return FALSE;
}
srcBuffer = translate_ibuffer(iBuffer);
if (srcBuffer == GL_NONE) {
debug_printf("Invalid buffer 0x%x in wglBindTexImageARB()\n", iBuffer);
SetLastError(ERROR_INVALID_DATA);
return FALSE;
}
target = translate_target(fb->textureTarget);
if (target == GL_NONE) {
debug_printf("no texture target in wglBindTexImageARB()\n");
return FALSE;
}
texFormat = translate_texture_format(fb->textureFormat);
if (texFormat == GL_NONE) {
debug_printf("no texture format in wglBindTexImageARB()\n");
return FALSE;
}
/*
* Bind the pbuffer surface so we can read/copy from it.
*
* Before we can call stw_make_current() we have to temporarily
* change the pbuffer's pixel format to match the context to avoid
* an error condition. After the stw_make_current() we restore the
* buffer's pixel format.
*/
pixelFormatSave = fb->iPixelFormat;
fb->iPixelFormat = curctx->iPixelFormat;
dc = wglGetPbufferDCARB(hPbuffer);
retVal = stw_make_current(dc, dc, curctx->dhglrc);
fb->iPixelFormat = pixelFormatSave;
if (!retVal) {
debug_printf("stw_make_current(#1) failed in wglBindTexImageARB()\n");
wglReleasePbufferDCARB(hPbuffer, dc);
return FALSE;
}
st_copy_framebuffer_to_texture(srcBuffer, fb->width, fb->height,
target, fb->textureLevel,
fb->textureFace, texFormat);
/* rebind previous drawing surface */
retVal = stw_make_current(prevDrawable, prevReadable, curctx->dhglrc);
if (!retVal) {
debug_printf("stw_make_current(#2) failed in wglBindTexImageARB()\n");
}
wglReleasePbufferDCARB(hPbuffer, dc);
return retVal;
}
