diff options
Diffstat (limited to 'src/mesa/drivers/dri/i915tex/i830_metaops.c')
| -rw-r--r-- | src/mesa/drivers/dri/i915tex/i830_metaops.c | 485 |
1 files changed, 485 insertions, 0 deletions
diff --git a/src/mesa/drivers/dri/i915tex/i830_metaops.c b/src/mesa/drivers/dri/i915tex/i830_metaops.c new file mode 100644 index 0000000000..c90f502222 --- /dev/null +++ b/src/mesa/drivers/dri/i915tex/i830_metaops.c @@ -0,0 +1,485 @@ +/************************************************************************** + * + * Copyright 2003 Tungsten Graphics, Inc., Cedar Park, Texas. + * All Rights Reserved. + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the + * "Software"), to deal in the Software without restriction, including + * without limitation the rights to use, copy, modify, merge, publish, + * distribute, sub license, and/or sell copies of the Software, and to + * permit persons to whom the Software is furnished to do so, subject to + * the following conditions: + * + * The above copyright notice and this permission notice (including the + * next paragraph) shall be included in all copies or substantial portions + * of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS + * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. + * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR + * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, + * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE + * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. + * + **************************************************************************/ + +#include "glheader.h" +#include "enums.h" +#include "mtypes.h" +#include "macros.h" +#include "utils.h" + +#include "intel_screen.h" +#include "intel_batchbuffer.h" +#include "intel_ioctl.h" +#include "intel_regions.h" + +#include "i830_context.h" +#include "i830_reg.h" + +/* A large amount of state doesn't need to be uploaded. + */ +#define ACTIVE (I830_UPLOAD_INVARIENT | \ + I830_UPLOAD_CTX | \ + I830_UPLOAD_BUFFERS | \ + I830_UPLOAD_STIPPLE | \ + I830_UPLOAD_TEXBLEND(0) | \ + I830_UPLOAD_TEX(0)) + + +#define SET_STATE( i830, STATE ) \ +do { \ + i830->current->emitted &= ~ACTIVE; \ + i830->current = &i830->STATE; \ + i830->current->emitted &= ~ACTIVE; \ +} while (0) + + +static void +set_no_stencil_write(struct intel_context *intel) +{ + struct i830_context *i830 = i830_context(&intel->ctx); + + /* ctx->Driver.Enable( ctx, GL_STENCIL_TEST, GL_FALSE ) + */ + i830->meta.Ctx[I830_CTXREG_ENABLES_1] &= ~ENABLE_STENCIL_TEST; + i830->meta.Ctx[I830_CTXREG_ENABLES_2] &= ~ENABLE_STENCIL_WRITE; + i830->meta.Ctx[I830_CTXREG_ENABLES_1] |= DISABLE_STENCIL_TEST; + i830->meta.Ctx[I830_CTXREG_ENABLES_2] |= DISABLE_STENCIL_WRITE; + + i830->meta.emitted &= ~I830_UPLOAD_CTX; +} + +static void +set_no_depth_write(struct intel_context *intel) +{ + struct i830_context *i830 = i830_context(&intel->ctx); + + /* ctx->Driver.Enable( ctx, GL_DEPTH_TEST, GL_FALSE ) + */ + i830->meta.Ctx[I830_CTXREG_ENABLES_1] &= ~ENABLE_DIS_DEPTH_TEST_MASK; + i830->meta.Ctx[I830_CTXREG_ENABLES_2] &= ~ENABLE_DIS_DEPTH_WRITE_MASK; + i830->meta.Ctx[I830_CTXREG_ENABLES_1] |= DISABLE_DEPTH_TEST; + i830->meta.Ctx[I830_CTXREG_ENABLES_2] |= DISABLE_DEPTH_WRITE; + + i830->meta.emitted &= ~I830_UPLOAD_CTX; +} + +/* Set depth unit to replace. + */ +static void +set_depth_replace(struct intel_context *intel) +{ + struct i830_context *i830 = i830_context(&intel->ctx); + + /* ctx->Driver.Enable( ctx, GL_DEPTH_TEST, GL_FALSE ) + * ctx->Driver.DepthMask( ctx, GL_TRUE ) + */ + i830->meta.Ctx[I830_CTXREG_ENABLES_1] &= ~ENABLE_DIS_DEPTH_TEST_MASK; + i830->meta.Ctx[I830_CTXREG_ENABLES_2] &= ~ENABLE_DIS_DEPTH_WRITE_MASK; + i830->meta.Ctx[I830_CTXREG_ENABLES_1] |= ENABLE_DEPTH_TEST; + i830->meta.Ctx[I830_CTXREG_ENABLES_2] |= ENABLE_DEPTH_WRITE; + + /* ctx->Driver.DepthFunc( ctx, GL_ALWAYS ) + */ + i830->meta.Ctx[I830_CTXREG_STATE3] &= ~DEPTH_TEST_FUNC_MASK; + i830->meta.Ctx[I830_CTXREG_STATE3] |= (ENABLE_DEPTH_TEST_FUNC | + DEPTH_TEST_FUNC + (COMPAREFUNC_ALWAYS)); + + i830->meta.emitted &= ~I830_UPLOAD_CTX; +} + + +/* Set stencil unit to replace always with the reference value. + */ +static void +set_stencil_replace(struct intel_context *intel, + GLuint s_mask, GLuint s_clear) +{ + struct i830_context *i830 = i830_context(&intel->ctx); + + /* ctx->Driver.Enable( ctx, GL_STENCIL_TEST, GL_TRUE ) + */ + i830->meta.Ctx[I830_CTXREG_ENABLES_1] |= ENABLE_STENCIL_TEST; + i830->meta.Ctx[I830_CTXREG_ENABLES_2] |= ENABLE_STENCIL_WRITE; + + /* ctx->Driver.StencilMask( ctx, s_mask ) + */ + i830->meta.Ctx[I830_CTXREG_STATE4] &= ~MODE4_ENABLE_STENCIL_WRITE_MASK; + i830->meta.Ctx[I830_CTXREG_STATE4] |= (ENABLE_STENCIL_WRITE_MASK | + STENCIL_WRITE_MASK((s_mask & + 0xff))); + + /* ctx->Driver.StencilOp( ctx, GL_REPLACE, GL_REPLACE, GL_REPLACE ) + */ + i830->meta.Ctx[I830_CTXREG_STENCILTST] &= ~(STENCIL_OPS_MASK); + i830->meta.Ctx[I830_CTXREG_STENCILTST] |= + (ENABLE_STENCIL_PARMS | + STENCIL_FAIL_OP(STENCILOP_REPLACE) | + STENCIL_PASS_DEPTH_FAIL_OP(STENCILOP_REPLACE) | + STENCIL_PASS_DEPTH_PASS_OP(STENCILOP_REPLACE)); + + /* ctx->Driver.StencilFunc( ctx, GL_ALWAYS, s_clear, ~0 ) + */ + i830->meta.Ctx[I830_CTXREG_STATE4] &= ~MODE4_ENABLE_STENCIL_TEST_MASK; + i830->meta.Ctx[I830_CTXREG_STATE4] |= (ENABLE_STENCIL_TEST_MASK | + STENCIL_TEST_MASK(0xff)); + + i830->meta.Ctx[I830_CTXREG_STENCILTST] &= ~(STENCIL_REF_VALUE_MASK | + ENABLE_STENCIL_TEST_FUNC_MASK); + i830->meta.Ctx[I830_CTXREG_STENCILTST] |= + (ENABLE_STENCIL_REF_VALUE | + ENABLE_STENCIL_TEST_FUNC | + STENCIL_REF_VALUE((s_clear & 0xff)) | + STENCIL_TEST_FUNC(COMPAREFUNC_ALWAYS)); + + + + i830->meta.emitted &= ~I830_UPLOAD_CTX; +} + + +static void +set_color_mask(struct intel_context *intel, GLboolean state) +{ + struct i830_context *i830 = i830_context(&intel->ctx); + + const GLuint mask = ((1 << WRITEMASK_RED_SHIFT) | + (1 << WRITEMASK_GREEN_SHIFT) | + (1 << WRITEMASK_BLUE_SHIFT) | + (1 << WRITEMASK_ALPHA_SHIFT)); + + i830->meta.Ctx[I830_CTXREG_ENABLES_2] &= ~mask; + + if (state) { + i830->meta.Ctx[I830_CTXREG_ENABLES_2] |= + (i830->state.Ctx[I830_CTXREG_ENABLES_2] & mask); + } + + i830->meta.emitted &= ~I830_UPLOAD_CTX; +} + +/* Installs a one-stage passthrough texture blend pipeline. Is there + * more that can be done to turn off texturing? + */ +static void +set_no_texture(struct intel_context *intel) +{ + struct i830_context *i830 = i830_context(&intel->ctx); + static const struct gl_tex_env_combine_state comb = { + GL_NONE, GL_NONE, + {GL_TEXTURE, 0, 0,}, {GL_TEXTURE, 0, 0,}, + {GL_SRC_COLOR, 0, 0}, {GL_SRC_ALPHA, 0, 0}, + 0, 0, 0, 0 + }; + + i830->meta.TexBlendWordsUsed[0] = + i830SetTexEnvCombine(i830, &comb, 0, TEXBLENDARG_TEXEL0, + i830->meta.TexBlend[0], NULL); + + i830->meta.TexBlend[0][0] |= TEXOP_LAST_STAGE; + i830->meta.emitted &= ~I830_UPLOAD_TEXBLEND(0); +} + +/* Set up a single element blend stage for 'replace' texturing with no + * funny ops. + */ +static void +set_texture_blend_replace(struct intel_context *intel) +{ + struct i830_context *i830 = i830_context(&intel->ctx); + static const struct gl_tex_env_combine_state comb = { + GL_REPLACE, GL_REPLACE, + {GL_TEXTURE, GL_TEXTURE, GL_TEXTURE,}, {GL_TEXTURE, GL_TEXTURE, + GL_TEXTURE,}, + {GL_SRC_COLOR, GL_SRC_COLOR, GL_SRC_COLOR}, {GL_SRC_ALPHA, GL_SRC_ALPHA, + GL_SRC_ALPHA}, + 0, 0, 1, 1 + }; + + i830->meta.TexBlendWordsUsed[0] = + i830SetTexEnvCombine(i830, &comb, 0, TEXBLENDARG_TEXEL0, + i830->meta.TexBlend[0], NULL); + + i830->meta.TexBlend[0][0] |= TEXOP_LAST_STAGE; + i830->meta.emitted &= ~I830_UPLOAD_TEXBLEND(0); + +/* fprintf(stderr, "%s: TexBlendWordsUsed[0]: %d\n", */ +/* __FUNCTION__, i830->meta.TexBlendWordsUsed[0]); */ +} + + + +/* Set up an arbitary piece of memory as a rectangular texture + * (including the front or back buffer). + */ +static GLboolean +set_tex_rect_source(struct intel_context *intel, + struct _DriBufferObject *buffer, + GLuint offset, + GLuint pitch, GLuint height, GLenum format, GLenum type) +{ + struct i830_context *i830 = i830_context(&intel->ctx); + GLuint *setup = i830->meta.Tex[0]; + GLint numLevels = 1; + GLuint textureFormat; + GLuint cpp; + + /* A full implementation of this would do the upload through + * glTexImage2d, and get all the conversion operations at that + * point. We are restricted, but still at least have access to the + * fragment program swizzle. + */ + switch (format) { + case GL_BGRA: + switch (type) { + case GL_UNSIGNED_INT_8_8_8_8_REV: + case GL_UNSIGNED_BYTE: + textureFormat = (MAPSURF_32BIT | MT_32BIT_ARGB8888); + cpp = 4; + break; + default: + return GL_FALSE; + } + break; + case GL_RGBA: + switch (type) { + case GL_UNSIGNED_INT_8_8_8_8_REV: + case GL_UNSIGNED_BYTE: + textureFormat = (MAPSURF_32BIT | MT_32BIT_ABGR8888); + cpp = 4; + break; + default: + return GL_FALSE; + } + break; + case GL_BGR: + switch (type) { + case GL_UNSIGNED_SHORT_5_6_5_REV: + textureFormat = (MAPSURF_16BIT | MT_16BIT_RGB565); + cpp = 2; + break; + default: + return GL_FALSE; + } + break; + case GL_RGB: + switch (type) { + case GL_UNSIGNED_SHORT_5_6_5: + textureFormat = (MAPSURF_16BIT | MT_16BIT_RGB565); + cpp = 2; + break; + default: + return GL_FALSE; + } + break; + + default: + return GL_FALSE; + } + + i830->meta.tex_buffer[0] = buffer; + i830->meta.tex_offset[0] = offset; + + setup[I830_TEXREG_TM0LI] = (_3DSTATE_LOAD_STATE_IMMEDIATE_2 | + (LOAD_TEXTURE_MAP0 << 0) | 4); + setup[I830_TEXREG_TM0S1] = (((height - 1) << TM0S1_HEIGHT_SHIFT) | + ((pitch - 1) << TM0S1_WIDTH_SHIFT) | + textureFormat); + setup[I830_TEXREG_TM0S2] = + (((((pitch * cpp) / 4) - + 1) << TM0S2_PITCH_SHIFT) | TM0S2_CUBE_FACE_ENA_MASK); + + setup[I830_TEXREG_TM0S3] = + ((((numLevels - + 1) * + 4) << TM0S3_MIN_MIP_SHIFT) | (FILTER_NEAREST << + TM0S3_MIN_FILTER_SHIFT) | + (MIPFILTER_NONE << TM0S3_MIP_FILTER_SHIFT) | (FILTER_NEAREST << + TM0S3_MAG_FILTER_SHIFT)); + + setup[I830_TEXREG_CUBE] = (_3DSTATE_MAP_CUBE | MAP_UNIT(0)); + + setup[I830_TEXREG_MCS] = (_3DSTATE_MAP_COORD_SET_CMD | + MAP_UNIT(0) | + ENABLE_TEXCOORD_PARAMS | + TEXCOORDS_ARE_IN_TEXELUNITS | + TEXCOORDTYPE_CARTESIAN | + ENABLE_ADDR_V_CNTL | + TEXCOORD_ADDR_V_MODE(TEXCOORDMODE_WRAP) | + ENABLE_ADDR_U_CNTL | + TEXCOORD_ADDR_U_MODE(TEXCOORDMODE_WRAP)); + + i830->meta.emitted &= ~I830_UPLOAD_TEX(0); + return GL_TRUE; +} + + +static void +set_vertex_format(struct intel_context *intel) +{ + struct i830_context *i830 = i830_context(&intel->ctx); + i830->meta.Ctx[I830_CTXREG_VF] = (_3DSTATE_VFT0_CMD | + VFT0_TEX_COUNT(1) | + VFT0_DIFFUSE | VFT0_XYZ); + i830->meta.Ctx[I830_CTXREG_VF2] = (_3DSTATE_VFT1_CMD | + VFT1_TEX0_FMT(TEXCOORDFMT_2D) | + VFT1_TEX1_FMT(TEXCOORDFMT_2D) | + VFT1_TEX2_FMT(TEXCOORDFMT_2D) | + VFT1_TEX3_FMT(TEXCOORDFMT_2D)); + i830->meta.emitted &= ~I830_UPLOAD_CTX; +} + + +static void +meta_import_pixel_state(struct intel_context *intel) +{ + struct i830_context *i830 = i830_context(&intel->ctx); + + i830->meta.Ctx[I830_CTXREG_STATE1] = i830->state.Ctx[I830_CTXREG_STATE1]; + i830->meta.Ctx[I830_CTXREG_STATE2] = i830->state.Ctx[I830_CTXREG_STATE2]; + i830->meta.Ctx[I830_CTXREG_STATE3] = i830->state.Ctx[I830_CTXREG_STATE3]; + i830->meta.Ctx[I830_CTXREG_STATE4] = i830->state.Ctx[I830_CTXREG_STATE4]; + i830->meta.Ctx[I830_CTXREG_STATE5] = i830->state.Ctx[I830_CTXREG_STATE5]; + i830->meta.Ctx[I830_CTXREG_IALPHAB] = i830->state.Ctx[I830_CTXREG_IALPHAB]; + i830->meta.Ctx[I830_CTXREG_STENCILTST] = + i830->state.Ctx[I830_CTXREG_STENCILTST]; + i830->meta.Ctx[I830_CTXREG_ENABLES_1] = + i830->state.Ctx[I830_CTXREG_ENABLES_1]; + i830->meta.Ctx[I830_CTXREG_ENABLES_2] = + i830->state.Ctx[I830_CTXREG_ENABLES_2]; + i830->meta.Ctx[I830_CTXREG_AA] = i830->state.Ctx[I830_CTXREG_AA]; + i830->meta.Ctx[I830_CTXREG_FOGCOLOR] = + i830->state.Ctx[I830_CTXREG_FOGCOLOR]; + i830->meta.Ctx[I830_CTXREG_BLENDCOLOR0] = + i830->state.Ctx[I830_CTXREG_BLENDCOLOR0]; + i830->meta.Ctx[I830_CTXREG_BLENDCOLOR1] = + i830->state.Ctx[I830_CTXREG_BLENDCOLOR1]; + i830->meta.Ctx[I830_CTXREG_MCSB0] = i830->state.Ctx[I830_CTXREG_MCSB0]; + i830->meta.Ctx[I830_CTXREG_MCSB1] = i830->state.Ctx[I830_CTXREG_MCSB1]; + + + i830->meta.Ctx[I830_CTXREG_STATE3] &= ~CULLMODE_MASK; + i830->meta.Stipple[I830_STPREG_ST1] &= ~ST1_ENABLE; + i830->meta.emitted &= ~I830_UPLOAD_CTX; + + + i830->meta.Buffer[I830_DESTREG_SENABLE] = + i830->state.Buffer[I830_DESTREG_SENABLE]; + i830->meta.Buffer[I830_DESTREG_SR1] = i830->state.Buffer[I830_DESTREG_SR1]; + i830->meta.Buffer[I830_DESTREG_SR2] = i830->state.Buffer[I830_DESTREG_SR2]; + i830->meta.emitted &= ~I830_UPLOAD_BUFFERS; +} + + + +/* Select between front and back draw buffers. + */ +static void +meta_draw_region(struct intel_context *intel, + struct intel_region *draw_region, + struct intel_region *depth_region) +{ + struct i830_context *i830 = i830_context(&intel->ctx); + GLuint format; + GLuint depth_format = DEPTH_FRMT_16_FIXED; + + intel_region_release(&i830->meta.draw_region); + intel_region_reference(&i830->meta.draw_region, draw_region); + + intel_region_release(&i830->meta.depth_region); + intel_region_reference(&i830->meta.depth_region, depth_region); + + /* XXX FBO: grab code from i915 meta_draw_region */ + + /* XXX: 555 support? + */ + if (draw_region->cpp == 2) + format = DV_PF_565; + else + format = DV_PF_8888; + + if (depth_region) { + if (depth_region->cpp == 2) + depth_format = DEPTH_FRMT_16_FIXED; + else + depth_format = DEPTH_FRMT_24_FIXED_8_OTHER; + } + + i830->meta.Buffer[I830_DESTREG_DV1] = (DSTORG_HORT_BIAS(0x8) | /* .5 */ + DSTORG_VERT_BIAS(0x8) | /* .5 */ + format | DEPTH_IS_Z | depth_format); + + i830->meta.emitted &= ~I830_UPLOAD_BUFFERS; +} + + +/* Operations where the 3D engine is decoupled temporarily from the + * current GL state and used for other purposes than simply rendering + * incoming triangles. + */ +static void +install_meta_state(struct intel_context *intel) +{ + struct i830_context *i830 = i830_context(&intel->ctx); + memcpy(&i830->meta, &i830->initial, sizeof(i830->meta)); + + i830->meta.active = ACTIVE; + i830->meta.emitted = 0; + + SET_STATE(i830, meta); + set_vertex_format(intel); + set_no_texture(intel); +} + +static void +leave_meta_state(struct intel_context *intel) +{ + struct i830_context *i830 = i830_context(&intel->ctx); + intel_region_release(&i830->meta.draw_region); + intel_region_release(&i830->meta.depth_region); +/* intel_region_release(intel, &i830->meta.tex_region[0]); */ + SET_STATE(i830, state); +} + + + +void +i830InitMetaFuncs(struct i830_context *i830) +{ + i830->intel.vtbl.install_meta_state = install_meta_state; + i830->intel.vtbl.leave_meta_state = leave_meta_state; + i830->intel.vtbl.meta_no_depth_write = set_no_depth_write; + i830->intel.vtbl.meta_no_stencil_write = set_no_stencil_write; + i830->intel.vtbl.meta_stencil_replace = set_stencil_replace; + i830->intel.vtbl.meta_depth_replace = set_depth_replace; + i830->intel.vtbl.meta_color_mask = set_color_mask; + i830->intel.vtbl.meta_no_texture = set_no_texture; + i830->intel.vtbl.meta_texture_blend_replace = set_texture_blend_replace; + i830->intel.vtbl.meta_tex_rect_source = set_tex_rect_source; + i830->intel.vtbl.meta_draw_region = meta_draw_region; + i830->intel.vtbl.meta_import_pixel_state = meta_import_pixel_state; +} |